Question

Factorise the following using appropriate identity

36x2-84xy+49y2
$2$
$x$​

Answer 1

Answer:

(6x-7y)(6x-7y)

Step-by-step explanation:

36x^2-84xy+49y^2

=(6x)^2-2.6x.7y+(7y)^2

=(6x-7y)^2 {(a-b)^2 = a^2-2ab+b^2}

=(6x-7y)(6x-7y)