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Question

Solve the following equation and verify your answer:
(x+2)(2x-3)-2x2+6x-5=2

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Solution

(x+2)(2x-3)-2x2+6x-5=2or 2x2+x-6-2x2+6x-5=2or xx-5=2or 2x-10=x [After cross multiplication]or 2x-x=10or x=10Thus, x=10 is the solution of the given equation.Check:Substituting x=10 in the given equation, we get:L.H.S.=(10+2)(2×10-3)-2×102+610-5=12×17-200+65=105=2R.H.S.=2 L.H.S.=R.H.S. for x=10.

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