Find the area of square whose side length is 2m+3n+4l
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Answer:
4m²+9n²+16l²+12mn+24nl+16ml
Step-by-step explanation:
area of square =side ×side
side=2m+3n+4l
area=(2m+3n+4l)²
=(2m)²+(3n)²+(4l)²+2(2m)(3n)+2(3n)(4l)+2(2m)(4l)
=4m²+9n²+16l²+12mn+24nl+16ml
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Explanation :
use this identidy to find the answer
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