Math, asked by janetanniejephy, 5 hours ago

simplify with identity and show full steps

(2x+7y)(4x^2-14xy+49y^2)

Answers

Answered by Anonymous

1

L.H.S

(2x−7y)

2

+28xy

=4x

2

+49y

2

−2×2×7xy+28xy [∵(a−b)

2

=a

2

+b

2

−2ab]

=4x

2

+49y

2

−28xy+28xy

=4x

2

+49y

2

=R.H.S

Hence proved.

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