tmlfan_179027 Messages 5 Reaction score 0 Thread starter Sep 10, 2009 #1 How would you factor 8x^6+64? My text states that the answer is 8(x^2+2)(x^4-2x^2+4). How would you get to that?
How would you factor 8x^6+64? My text states that the answer is 8(x^2+2)(x^4-2x^2+4). How would you get to that?
CRGreathouse Science Advisor Homework Helper Messages 2,832 Reaction score 0 Sep 10, 2009 #2 Factoring out the 8 is easy. Once you have that, it's clear that you have a sum of cubes: a^3 + b^3 = (a + b)(a^2 - ab + b^2)
Factoring out the 8 is easy. Once you have that, it's clear that you have a sum of cubes: a^3 + b^3 = (a + b)(a^2 - ab + b^2)