Question

Factorise the following expressions

x^2 + 9x + 20

Answer 1

(x+4) (x+5)

Explanation:

we look for what we add together to give 9 and what we multiply to give 20

and that's 4 and 5

so the answer is x+4 and x+ 5

Answer 2

Refer to the attachment.

Hope it helps ⚜