Question

Factorise
25 x^2+70xy+49y^2

Answer 1

Answer:

Step-by-step explanation:

25x2+70xy+49y2

(5x)^2+2×5×7×x×y+ (7x)2

(5x+7y)^2

Answer 2

Answer:

$25 {x}^{2} + 70xy + 49 {y}^{2} \\ \\ by \: using (x + y) ^{2} = {x}^{2} + {y}^{2} + 2xy \\ (5x + 7y) ^{2} = (5x + 7y)(5x + 7y)$