7. Factorise each of the following. (a) $$ -x^{2}+5 x-6 $$ (b) $$ -x^{2}+7 x+8 $$ (c) $$ -2 x^{2}-11 x-5 $$ (d) $$ -3 x^{2}-11 x+4 $$

Question

Haynes Norris · Accepted Answer

(a) $$ -x^{2}+5x-6 = -(x-3)(x-2) $$ (b) $$ -x^{2}+7x+8 = -(x-8)(x+1) $$ (c) $$ -2x^{2}-11x-5 = -(x+5)(2x+1) $$ (d) $$ -3x^{2}-11x+4 = -(x+4)(3x-1) $$

7. Factorise each of the following. (a) \( -x^{2}+5 x-6 \) (b) \( -x^{2}+7 x+8 \) (c) \( -2 x^{2}-11 x-5 \) (d) \( -3 x^{2}-11 x+4 \)