Question

factorise 15a-2b)^2 -8 (a-2b)-16​

Answer 1

Answer:

((a-2b)-4/3)((a-2b)+4/5)

Step-by-step explanation:

by taking a-2b=t

$15t^{2}-8t-16$

by using quadratic formula 4/3,-4/5 are factors

(t-4/3)(t+4/5)

t=a-2b