Question

Answer 6th one please.

Answer 1

Step-by-step explanation:

(a) x²+7x-30

solution -

=x²+7x-30

=x²+10x-3x-30

=x(x+10)-3(x+10)

=(x+10)(x-3)

(b) x² - 9x+20

solution-

=x² - 9x +20

=x² - 4x-5x+20

=x(x-4)-5(x-4)

=(x-4)(x-5)