Question: Multiply. x 2 + 7 x + 2 x 2 - 4 x + 3 * 7 x - 2 1 x 2 + 7

Multiply.
x2+7x+2x2-4x+3*7x-21x2+7x+2
What is the product?
 Multiply. x2+7x+2x2-4x+3*7x-21x2+7x+2 What is the product?

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