Question

factorise :x2+9x+18
​

Answer 1

Answer:

(x+3) (x+6)

Step-by-step explanation:

x^2+6x+3x+18

x(x+6) 3(x+6)

= (x+3) (x+6)

Answer 2

Answer:

${x}^{2} + 9x + 18 \\ {x}^{2} + 3x + 6x + 18 = 0 \\ x(x + 3) \: \: \: + 6(x + 3) = 0 \\ (x + 6) \: \: \: (x + 3) = 0 \\ x = - 6 \: \: \: \: \: \: \: x = - 3$