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Question

Find the product:
(x2 − 3x + 7) × (2x + 3)

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Solution

By horizontal method:

(x2-3x+7)×(2x+3)=2x(x2-3x+7)+3(x2-3x+7)=2x3-6x2+14x+3x2-9x+21=2x3-3x2+5x+21

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