Question

Factorise 169x^2+204xy+49y^2

Answer 1

Answer:

169x^2+204xy+49y^2

(13x)^2+2×13x×7y+(7y)^2

(13x+7y)^2

(13x+7y)(13x+7y)

as a^2+2ab+b^2=(a+b)^2