Question

factorise :x2+9x+18​

Answer 1

Answer:

(x+6)(x+3)

Step-by-step explanation:

x² + 9x + 18

= x² + (6+3)x + 18

= x² + 6x + 3x + 18

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

= (x+6)(x+3)

Answer 2

Answer:

(a+b)2=a2+b2+2ab ka formula laga