Question

Factorise : 9x2 + 6xy + y2​

Answer 1

Step-by-step explanation:

you need to learn algebraic identities the formula is (a+b)^2=a^2+2ab+b^2

Answer 2

Answer:

$9 {x}^{2} + 6xy + {y}^{2} + (3x + y)(3x +y ).$

Step-by-step explanation:

$9 {x}^{2} + 6xy + {y}^{2} = {(3x)}^{2} + 2(3x)(y) + {y}^{2} \\ \\ = {(3x + y)}^{2} \\ \\ = (3x + y)(3x + y).$