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alekssr [168]
2 years ago
14

Find an expression which represents the sum of (7x-y)(7x−y) and (5x+3y)(5x+3y) in simplest terms.

Mathematics
1 answer:
lisov135 [29]2 years ago
8 0

Answer:

Hello,

Step-by-step explanation:

(7x - y)(7x - y) + (5x+3y)(5x+3y)\\\\=(7x-y)^2+(5x+3y)^2\\=(49x^2-14xy+y^2)+(25x^2+30xy+9y^2)\\\\\boxed{=74x^2+16xy+10y^2}

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