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What should be subtracted from 7x x² + x - 12 to get x + 4?

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eginarrayl	extLet y 	extshould be substractd\ 	extHence\ 7x^2+x-12-left(y
ight)=x+4\ Rightarrow y=7x^2+x-12-x-4=7x^2-16 \ 	extSo, y=7x^2-16endarray

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Deependra Verma

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