Evaluate using the expansion of (a + b)^2 or (a – b)^2: (188)^2 - Vidyadip

Question

Evaluate using the expansion of $(a + b)^2$ or $(a – b)^2: (188)^2$

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Answer

$(188)^2 = (200 − 12)^{2 }$
$= (200)^2+ (12)^2 − 2(200) (12)$
$= 40000 + 144 − 4800$
$= 40144 − 4800$
$= 35344$

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