22 Videos for "sums and differences"

Factoring the Sum or Difference of Cubes  Concept
Math › Algebra 2 › Factoring
How to factor the sum or difference of cubes. 
Factoring the Sum or Difference of Cubes  Problem 1
Math › Algebra 2 › Factoring
How to factor the difference of cubes. 
Factoring the Sum or Difference of Cubes  Problem 3
Math › Algebra 2 › Factoring
How to factor the difference of cubes by substitution. 
Factoring the Sum or Difference of Cubes  Problem 2
Math › Algebra 2 › Factoring
How to factor the difference of cubes by substitution. 
Solving a Rational Equation  Problem 5
Math › Algebra 2 › Rational Expressions and Functions
Turning sums and differences into proportions to enable cross multiplication. 
Simplifying Expressions with Exponents  Problem 4
Math › Algebra › Exponents
Overview of when exponents can be "distributed," or applied to products or quotients, and how exponents can not be applied to sums or differences. 
Simplifying Complex Fractions  Problem 6
Math › Algebra 2 › Rational Expressions and Functions
Simplifying fractions that have sums and differences of terms with negative exponents. 
The Sine Addition Formulas  Concept
Math › Trigonometry › Advanced Trigonometry
How to derive the sine of a sum formula. 
The Sine Addition Formulas  Concept
Math › Precalculus › Advanced Trigonometry
How to derive the sine of a sum formula. 
Expanding Logarithms  Problem 5
Math › Precalculus › Exponential and Logarithmic Functions
Expanding logs using the quotients to sums and differences. 
Expanding Logarithms  Problem 5
Math › Algebra 2 › Inverse, Exponential and Logarithmic Functions
Expanding logs using the quotients to sums and differences. 
Solving Radical Equations  Problem 1
Math › Algebra › Radical Expressions and Equations
How to solve rational equations with no sums or differences. 
Factoring: Special Cases Part II  Problem 6
Math › Algebra › Factoring
Factoring cubic polynomials by either factoring a GCF, using the sum/difference of cubes formulas, or grouping 
Common Algebra II Mistakes  Problem 3
Math › Algebra 2 › Additional Topics
How to avoid making a mistake when taking the square root of a sum/difference. 
Introduction to Rational Functions  Problem 1
Math › Algebra › Rational Expressions and Functions
How to find excluded values of a rational function where there are no sums or differences. 
Introduction to Rational Functions  Problem 2
Math › Algebra › Rational Expressions and Functions
How to find excluded values of a rational function where there is a sum or difference in the denominator. 
The Sine Addition Formulas  Problem 2
Math › Trigonometry › Advanced Trigonometry
How to derive the sine of a difference formula and use it to find the sine of an angle. 
The Sine Addition Formulas  Problem 2
Math › Precalculus › Advanced Trigonometry
How to derive the sine of a difference formula and use it to find the sine of an angle. 
The Cosine Addition Formulas  Problem 3
Math › Trigonometry › Advanced Trigonometry
How to evaluate cos(a ? b) and cos(a + b) when you know only sin(a) and cos(b). 
The Cosine Addition Formulas  Problem 3
Math › Precalculus › Advanced Trigonometry
How to evaluate cos(a ? b) and cos(a + b) when you know only sin(a) and cos(b).