Find (5m + 7n) ² plz slove it
Answers
Answered by
1
Answer:
25m^2 +49^2 +70mn
Step-by-step explanation:
= (5m+7n)^2
= 25m^2 +49^2 +70mn
Answered by
1
Answer:
25m²+70mn+49n²
Step-by-step explanation:
(5m + 7n) ²
= (5m)²+2×5m×7n+(7n)²
{(a+b)²= a²+2ab+b²}
= 25m²+70mn+49n²
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