Question

Factorise : a) x²-x-110
: b) 25÷4 a²-b²

Answer 1

(a) x² - x -110

= x² - 11x + 10x - 110

= x(x-11)+10(x-11)

= (x+10)(x-11)

(b) is in the attachment...

Answer 2

Answer:

here is your answers

A) x^2-x-110

x^2-11x+10x-110

x(x-11)+10(x-11)

(x-11)(x+10)

X=11,-10

B)25÷4a^2-b^2

This I don't know.

Step-by-step explanation: