Question

(49)x^2+84xy+(36y)^2​

Answer 1

Answer:

$Here, \: \: I \: \: have \: \: used \: \: this\: \: formula : \\ {a}^{2} + 2ab + {b}^{2} = {(a + b)}^{2} \\ Here, \\ a = 7x \\ b = 6y$

Step-by-step explanation:

$49 {x}^{2} + 84xy + 36 {y}^{2} \\ = {(7x)}^{2} + 84xy + {(6y)}^{2} \\ = {(7x)}^{2} + 2(7x)(6y) + {(6y)}^{2} \\ \large{ \boxed{= \underline{ \underline{ {(7x + 6y)}^{2} }}}}$