Question

factorise the following by using the identities.
a)
$2x ^{2} - 32x + 128$
​

Answer 1

Answer:

$2x ^{2} - 16 x - 16x + 128 \\ = 2x(x - 8) - 16(x - 8) \\ = (x - 8)(2x - 16)$