Factorise : x^2 - (a - 3)x - 3a

x 2 \- (a \- 3)x \- 3a = x 2 \- ax \+ 3x \- 3a = x(x \- a) \+ 3(x \- a) = (x \- a)(x \+ 3) Hence,x 2 \- (a \- 3)x \- 3a = (x \- a)(x \+ 3)

Mathematics

9 Likes

x² - (a - 3)x - 3a

= x² - ax + 3x - 3a

= x(x - a) + 3(x - a)

= (x - a)(x + 3)

Hence,x² - (a - 3)x - 3a = (x - a)(x + 3)

Answered By

7 Likes