Question

x square + 3 X + 18 is equal to 0, factorise ​

Answer 1

Answer:

it can't be factorised since

D=-63

Answer 2

Step-by-step explanation:

x

$x {}^{2} + 3x + 18 = 0 \\ x {}^{2} + 6x - 3x + 18 = 0 \\ x(x + 6) + 3(x + 6) = 0 \\ (x + 3)(x + 6) = 0 \\ x = - 3 \\ x = - 6$