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Coolmath Algebra
Table of Contents: Algebra 2

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Algebra Review	Polynomial Review	Exponents & Radicals Review Plus
Quadratics Review Plus	Inverse Functions	Exponentials & Logarithms
Systems of Equations (2x2's and 3x3's)	Analytic Geometry (Conic Sections)	Sequences & Series
Combinatorics
Note to teachers: The new Algebra that we are building will be topic driven and will not be listed according to course. I think this is going to make it easier for students to find what they need. Since you may have lesson plans set up with this old navigation, I'll leave them up for you. But, we won't be doing any maintenance on them, updating broken links or adding new things in. Please just bookmark this main chapter page to be able to find them after we are done! Go to the main Algebra navigation page to access the upgraded lessons


	Algebra 2: Algebra Review
	Algebra Review: Equations ( x+b = c ) ( ax = c ) ( ax+b = c ) ( ax+b = cx+d ) Algebra Review: Dealing with Fractions & Decimals ( with decimals ) ( with decimals ) Algebra Review: Intervals ( interval notation ) ( interval to set-builder ) Algebra Review: Inequalities ( ax+b < c ) ( ax+b < cx+d ) ( d < ax+b < c ) Algebra Review: A Review of Lines ( find slope from two points ) ( find equation given point & slope ) ( find equation given two points ) Algebra Review: The Predicting Power of Lines Algebra Review: Parallel Lines Algebra Review: Perpendicular Lines Algebra Review: What's a Function? (Intro to Domain & Range) Algebra Review: Function Notation Algebra Review: How to Tell If It's a Function (The Vertical Line Test) Algebra Review: A Brief Review of Domains

	Algebra 2: Polynomial Review
	Polynomial Review: Rules Review ( exponent rule 1 ) ( exponent rule 2 ) ( exponent rule 3 ) ( exponent rule 4 ) ( exponent rule 4 - with rule 2 ) ( exponent rule 4 - with rule 3 ) Polynomial Review: A Review of Arithmetic ( adding and subtracting ) ( ax+b )( cx+d ) ( ax+b )( cx^2+dx+e ) Polynomial Review: What's a Factor Again? Polynomial Review: Undoing the Distributive Property Polynomial Review: Intro to Trinomials Polynomial Review: Undoing FOIL - Part 1 ( x^2 + bx + c ) Polynomial Review: Factoring Harder Trinomials ( ax^2 + bx + c ) Polynomial Review: Factoring Special Guys ( difference of two squares ) ( sum & difference of two cubes ) Polynomial Review: Factoring by Grouping Polynomial Review: Factoring - A Final Overview Polynomial Review: Dividing by Monomials Polynomial Review: Long Division Polynomial Review: Long Division - Freaky Things That Can Happen - Part 1 Long Division - Freaky Things That Can Happen - Part 2

	Algebra 2: Exponents & Radicals Review Plus
	Exponents & Radicals: A Review of Exponent Rules Exponents & Radicals: N ew Rule 1 ( with negative exponents ) Exponents & Radicals: N ew Rule 2 Exponents & Radicals: A Review of Radicals Exponents & Radicals: Rules for Radicals ( multiplying radicals ) Exponents & Radicals: Rewriting Radicals Exponents & Radicals: Adding & Subtracting Radicals Exponents & Radicals: Multiplying Messier Radicals - FOIL Exponents & Radicals: Rationalizing Denominators Exponents & Radicals: Fractional Exponents

	Algebra 2: Quadratics Review Plus
	Quadratics Review: Solving Equations ( factoring 1 ) ( factoring - harder numbers ) ( square root trick ) ( Quadranator ) Quadratics Review: Complex Numbers & Solving Equations Quadratics Review: Graphing ( completing the square 1 ) ( completing the square 2 ) Quadratics Review: What Does It Really Mean When We Solve a Quadratic = 0? Quadratics Review: Solving Inequalities

	Algebra 2: Inverse Functions
	Inverse Functions: What Are They and What Do They Do? How to Tell If a Function Has an Inverse Function (One-to-One) Inverse Functions: The Big Picture -- Two Big Things to Know Composition of Functions How to See If Two Functions are Inverses Finding the Inverse of a Function

	Algebra 2: Exponentials & Logarithms
	Exponentials & Logarithms: The Exponential Monster Exponentials & Logarithms: Alien Amoebas Exponentials & Logarithms: Compound Interest Exponentials & Logarithms: Continuous Compounding Exponentials & Logarithms: Population Growth Exponentials & Logarithms: Graphs of Exponentials Exponentials & Logarithms: What's a Logarithm? Exponentials & Logarithms: Some Special Logs Exponentials & Logarithms: Inverse Tricks Exponentials & Logarithms: Solving Exponential Equations ( equations ) Exponentials & Logarithms: Solving for Times and Rates ( $$ continuous compounding ) ( $$ regular compounding ) ( populations - finding the rate ) ( populations - solving for time ) Exponentials & Logarithms: More Ways to Use This Stuff ( decay ) ( decay - finding the half-life ) ( decay solving for time ) Exponentials & Logarithms: Tricks to Help With Calculus

	Algebra 2: Systems of Equations
	Systems of Equations: A Review of 2x2's Systems of Equations: A Brief Intro to 3x3's Systems of Equations: Solving 3x3's by Elimination Systems of Equations: Freaky Things That Can Happen Systems of Equations: Determinants and Cramer's Rule for 2x2's ( determinants ) ( Cramer's Rule ) Systems of Equations: Determinants for 3x3's Systems of Equations: Cramer's Rule for 3x3's Systems of Equations: Freaky Things That Can Happen - Part 2 Systems of Equations: Inequalities

	Algebra 2: Analytic Geometry (Conic Sections)
	Conic Sections: Circles - Intro Conic Sections: Ellipses - Intro Conic Sections: Parabolas - Intro Conic Sections: Hyperbolas - Intro Conic Sections: Circles - The Formula & Graphing Conic Sections: Ellipses - The Formula & Graphing Conic Sections: Hyperbolas - The Formula & Graphing

	Algebra 2: Sequences & Series
	Sequences & Series: What's a Sequence? Sequences & Series: Sequences With Formulas Sequences & Series: Series and Sigma Notation Sequences & Series: Some Sigma Properties Sequences & Series: Arithmetic Sequences Sequences & Series: Gauss's Problem and Sums of Arithmetic Sequences (Series) Sequences & Series: Geometric Sequences Sequences & Series: Sums of Geometric Sequences (Series) Sequences & Series: The Binomial Theorem

	Algebra 2: Combinatorics
	Combinatorics: Fast Counting (The Product Model) Combinatorics: Factorials Combinatorics: Permutations Combinatorics: Permutations with Reruns Combinatorics: Combinations Combinatorics: The Binomial Theorem Revisited

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