6-3x+2x^2 × 1+5x-x^2
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Step-by-step explanation:
6-3x+2x^2 × 1+5x-x^2
=6-3x+2×^2+5×-×^2
=3x+2×^7×-x^2
=3x+14x-x^2
=17x-×^2
=14×^
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