Question

Factorise
x2 + 9x +18​

Answer 1

Answer:

(x+3) and (x+6).

Step-by-step explanation:

${x}^{2} + 9x + 18 \\ = {x}^{2} + 6x + 3x + 18 \\ = x(x + 6) + 3(x + 6) \\ = (x + 3)(x + 6)$

The factors are (x+3) and (x+6).

Thank you

Answer 2

Step-by-step explanation:

by using formula of discriminant we can find the roots