Find the square of (7+2m)or(7+2m)²
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4
Step-by-step explanation:
(7 + 2m )2
a2 + 2ab + b2
(7)2 + 2 (7×2 m) +2m2
49 + 2 (14 m ) + 4m2
49 + 28m + 4m2
Answered by
1
(7 + 2m)²
=7×2 + 2(7×2 m) +2m² [using the formula, (a+b)² = a² + 2ab + b²]
=49 + 2×(14 m) + 4m²
=4m² + 49 + 28m
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