Question

Pls answer question in attachment ex.2
Plz ans

Answer 1

Answer:

(x^2-5x-10) (x^2-5x+2)

Step-by-step explanation:

(x+2) (x-3) (x-7) (x-2) + 64

=(x+2)(x-7) (x-3)(x-2) + 64

=(x^2-5x-14) (x^2-5x+6) + 64

=(a-14) (a+6) + 64 {Let, x^2-5x=a}

=a^2-8a-84+64

=a^2-8a-20

=a^2-10a+2a-20

=a(a-10) + 2(a-10)

=(a-10) (a+2)

=(x^2-5x-10) (x^2-5x+2) {since, a=x^2-5x}