Question 23 Factorise (i) x2+9x+18 (ii) 6x2+7x−3 (iii) 2x2−7x−15 (iv) 84−2r−2r2

Question 23 Factorise (i) x2+9x+18 (ii) 6x2+7x−3 (iii) 2x2−7x�

1.	Question 23 Factorise (i) x2+9x+18 (ii) 6x2+7x−3 (iii) 2x2−7x−15 (iv) 84−2r−2r2
Answer» Question 23 Factorise (i) $x^{2} + 9 x + 18$ (ii) $6 x^{2} + 7 x - 3$ (iii) $2 x^{2} - 7 x - 15$ (iv) $84 - 2 r - 2 r^{2}$