Q3 of 53 Page 166

Foctorise the following:

x2 + x – 12

⇒ x2 + x – 12


⇒ x2 + 4x - 3x - 12


⇒ x(x + 4) – 3(x + 4)


⇒ (x + 4)(x - 3)


More from this chapter

All 53 →
2

Factorise the following:

(i) x2 + 6x + 9


(ii) 1 – 8x + 16x2


(iii) 4x2 – 81y2


(iv) 4a2 + 4ab + b2


(v) a2b2 + c2d2 – a2c2 – b2d2.

 3

Foctorise the following:

x2 + 7x + 12

 3

Foctorise the following:

x2 – 3x – 18

 3

Foctorise the following:

x2 + 4x – 21