Factorise the equation below (1)

(1) x2 + 15x + 56 = 0

56 = 1 x 56, 2 x 26, 4 x 14, 7 x 8

7 + 8 = 15

Hence, factorised equation is (x + 7)(x + 8) = 0

FT

Related Maths GCSE answers

All answers ▸

Simplify fully (x^2 + 3x)/(4x + 12)


f(x) = 4x - m, g(x) = mx + 11, fg(x) = 8x + n. m and n are constants. Find the value of n.


How do I find the equation of a line connecting points a(p,q) and b(r,s)?


How do I do algebra when there is an x on both sides?