Question

(8x2 - 4x-8)(2x +3x+2)

A. 16x4 +16X2 - 12x2 - 16x-6
OB. 16x4 +16x2 - 12x2 - 16% -16
C. 16x4 +16x3-12x2 - 32x-16
D. 16x4 +16x3 - 12x2 -32% -6

Answer 1

(8x2−4x−8)(2x+3x+2)

=(8x2+−4x+−8)(2x+3x+2)

=(8x2)(2x)+(8x2)(3x)+(8x2)(2)+(−4x)(2x)+(−4x)(3x)+(−4x)(2)+(−8)(2x)+(−8)(3x)+(−8)(2)

=16x3+24x3+16x2−8x2−12x2−8x−16x−24x−16

=40x3−4x2−48x−16

Explanation: