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Mathematics

Answered

Show that (5x-7)2 +140x=(5x+7)2

Answer :

124v33n4go 124v33n4go

(5x-7)2 + 140x
= 25x2 - 70x + 14 + 140x
= 25x2 + 70x + 14
= (5x+7)2

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