Algebra
posted by Michelle Summer .
8x^3 + 27 factor the sum or difference of two cubes. Please show work.

Algebra 
Reiny
You must know that
A^3 + B^3 = (A+B)(A^2  AB + b^2)
so 8x^3 + 27)
= (2x + 3)(4x^2  6x + 9)
Respond to this Question
Similar Questions

math
please help me simplify (x^3+8)/(x^416). thanks. The denominator is cleary the differerence of two squares (X^24)(x^2+4). That can again be factored to (x+2)(x2)(x^2+4). The numerator can be factored using the trinomial simplification.. … 
Algebra
I have been doing sum of cubes and difference of cubes problems and I just cant figure out these questions... Sum of Cubes Pattern a3 + b3 = (a + b)(a2  ab + b2) Difference of Cubes Pattern a3  b3 = (a  b)(a2 + ab + b2 1. 64x^3 … 
math
Factor using the formula for the sum or difference of two cubes. x^6  27y^3 
Math
Some students might argue that if you know how to factor a sum of cubes, then you do not need to know how to factor a difference of cubes. Explain why you agree or disagree. 
ALGEBRA
Can someone explain the following to me? 1.How do you factor the difference of two squares? 
algebra 2
Factor the difference of two cubes: 5x^4y^240xy^5 
algebra
How do you factor the difference of two squares? 
mat 117
How do you factor the difference of the two squares? 
Algebra
Which special case is represented by x^2121? 
mathematicsAlgebra
I think of two whole numbers;the product of the average of the sum and difference of the numbers and the difference of the sum and difference of the numbers is 12.if three times the first added to the second makes up 11..find the two …