Question

Factorise:
(2x²-5x)²-19(2x²-5x) +84
Step by step answers​

Answer 1

Answer:

Let 2x²-5x be a

a²-19a+84

a²-12a-7a+84

a(a-12)-7(a-12)

(a-7)(a-12)

(2x²-5x-7)(2x²-5x-12)