square of 3x +4y is
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Step-by-step explanation:
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Answered by
1
Answer:
(a−b)
2
=a
2
+b
2
−2ab
∴(3x−4y)
2
=(3x)
2
+(4y)
2
−2(3x)(4y)
=9x
2
+16y
2
−24xy
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