Question

(2x – 32x³) =? 

A. 2(x – 4) (x + 4) 

B. 2x(1 – 2x)² 

C. 2x(1 + 2x)² 

D. 2(1 – 4x) (1 + 4x)

Answer 1

(2x – 32x³) = 2x(1 – 16x²) (taking 2x as common from whole) 

= 2x(1 – 4x)(1 + 4x) a² – b² = (a – b)(a + b)