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