Question

What is the product? -9x(5-2x)

Answer 1

-45x + 18x²

Explanation:

-9x (5 - 2x)

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Multiply each term in the brackets by -9x

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-9x × 5 - 9x × (-2x)

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Calculate the product

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(-9x × 5) = -45

(-) & (-) = (+)

9x × 2x = 18x²

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Solution

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-45x + 18x²