expand (4x-5y) (4x+6y) by formula
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Step-by-step explanation:
4x−5y)(4x+6y)
a
2
+b
2
(a−b)(a+b)
(4x)
2
+(1y)
2
(4x−5y)(4x+6y)
−1xy+10xy
9xy
2
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