सरलरूप दया (4×2+7×-1)-(×2+8×-7+(×2+10
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Step-by-step explanation:
(4×2+7×-1)-(×2+8×-7+(×2+10)
=(4x²+7x-1)-(x²+8x-7+x²+10)
=(4x²+7x-1)-(2x²+8x+3)
=4x²+7x-1-2x²-8x-3
=2x²-x-4
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