tollenlockett
contestada

Select the expression that is equivalent to 8x3 + 512.
A. 8(x+4) (x2 - 4x + 16)
B.O 8(x+4) (x² + 4x + 16)
C.O (2x + 8) (4x2 - 16x + 16)
DO (2x + 8) (4x2 – 322 +64)

Respuesta :

denizshojadel

Step-by-step explanation:

8x³+512

we know 512 is 8³. so: (2x)³+8³

now:

(2x+8)(4x²-16x+64)

I guess C might be the correct answer considering it may have been written wrong. because in the second braces we should do this:( (2x)²-(2x ×8) +8²) and 8²=64 not 16