• #### Radii to Tangents - Problem 2

##### Math›Geometry›Circles
How to calculate the measure of a missing angle in a quadrilateral formed by two circles that are tangent but not congruent and their radii drawn to a common line of tangency.
• #### Adding and Subtracting Rational Expression - Problem 6

##### Math›Algebra›Rational Expressions and Functions
How to find the least common denominator of two monomial terms that include variables
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• #### Factoring: Special Cases Part II - Concept

##### Math›Algebra›Factoring
How to factor a third degree polynomial by grouping.
• #### Factoring: Special Cases Part II - Problem 1

##### Math›Algebra›Factoring
How to factor by grouping if given the GCF binomial.
• #### Graphs with Holes - Problem 3

##### Math›Precalculus›Polynomial and Rational Functions
How to graph a rational function when there is a common factor in the numerator and denominator
• #### Factoring: Special Cases Part II - Problem 2

##### Math›Algebra›Factoring
How to factor by grouping if given a third degree polynomial.
• #### Solving Multi-step Equations - Problem 4

##### Math›Algebra›Solving Equations
Strategy for turning equations with fractions into integers only by multiplying by the least common denominator
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• #### Factoring Trinomials, a is not 1 - Concept

##### Math›Algebra›Factoring
How to factor trinomials when the leading coefficient is not one.
• #### Factoring Trinomials, a is not 1 - Problem 1

##### Math›Algebra›Factoring
How to factor trinomials when the leading coefficient has only one pair of factors.
• #### Simplifying Determinants - Concept

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations.
• #### Solving Quadratic Equations by Factoring - Problem 13

How to use difference of perfect squares and greatest common factors to solve equations by factoring
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• #### Factoring Trinomials, a is not 1 - Problem 2

##### Math›Algebra›Factoring
How to factor trinomials with the leading coefficient has more than one pair of factors.
• #### Multiplying and Dividing Rational Expressions - Problem 9

##### Math›Algebra 2›Rational Expressions and Functions
Simplifying radical expressions by factoring and then crossing out common factors in top and bottom
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• #### Adding and Subtracting Rational Expressions - Problem 8

##### Math›Algebra 2›Rational Expressions and Functions
Identifying the LCM's of polynomials.
• #### Solving Quadratic Equations by Factoring - Problem 14

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to solve polynomial equations by factoring with a greatest common factor
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• #### Solving Quadratic Equations by Factoring - Problem 13

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to use difference of perfect squares and greatest common factors to solve equations by factoring
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• #### Solving a Rational Equation for a parameter - Concept

##### Math›Algebra 2›Rational Expressions and Functions
How to solve a simple rational equation for a parameter.
• #### Factoring Trinomials, a is not 1 - Problem 3

##### Math›Algebra›Factoring
How to factor trinomials when the leading coefficient is negative.
• #### Factoring Trinomials, a is not 1 - Problem 4

##### Math›Algebra›Factoring
How to factor trinomials when a monomial can be factored out first.
• #### Adding/Subtracting Fractions- Like Denominators - Problem 3

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Drawing a picture to represent adding fractions with a common denominator
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