Question

x2+9x+18 factorise .

Answer 1

Heya!

Here is yr answer
__________________________


=> x² + 9x + 18

=> x² + 6x + 3x +18

=> x (x+6) + 3 (x+6)

=> (x+6) (x+3)


Therefore, (x+6) (x+3) are the factots....


hope it hlpzzz....

Answer 2

Given,

An expression $x^2+9x+18$.

To find,

Factors of $x^2+9x+18$

Solution,

It can be done by middle-term splitting as follows :

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

Hence, the factors of $x^2+9x+18$ are (x+3) and (x+6).