(5m+7n)²+(7m+5n)²............
Answers
Answered by
1
Answer:
this is the answer hope it helps you and plsss mark me as brainliest
Step-by-step explanation:
(5m+7n)²+(7m+5n)²
=(5m)²+(7n)²+2(5m)(7n)+(7m)²+(5n)²+2(7m)(5n)
= 25m²+49n²+70mn+49m²+25n²+70mn
= 74m²+74n²+140mn
Answered by
6
Step-by-step explanation:
(5m+7n)^2= 25m^2 +49n^2+70mn
(7m+5n)^2= 49m^2 +25n^2+70mn
74m^2 +74n^2+140mn
Similar questions