Question

Factor b12 + 8.
(b4 - 2)(b16 + 2b4 + 4)
(b4 + 2)(b8 - 2b4 + 4)
(b4 - 2)(b8 + 2b4 + 4)
(b4 + 2)(b16 - 2b4 + 4)

Answer 1

the answer is (b4+2)(b8+2b4+4)

Answer 2

just multiply all the answer choices until one of them look like b12+8, if you cant remember how to factor a problem like this

Answer 3

b^12 + 8 is a sum of cubes (b^4)^3 + (2)^3

x^3 + x^3 = (x+y)(x^2 - x y + y^2)

Answer 4

it aint all plus

Answer 5

?

Answer 6

(b^4 + 2)( b^8 - 2b^4 + 4) use the formula I gave.