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Use the FOIL method to find the product below. (x + 5)(x2 – 3x)

User Mickeger
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2 Answers

5 votes

Correct answer is x^3 + 2x*2 - 15x

User Fitz
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(x + 5)(x² - 3x)

Use FOIL (First, Outside, Inside, Last)

x(x²) = x³
x(-3x) = -3x²
5(x²) = 5x²
5(-3x) = -15x

Combine like terms:

x³ - 3x² + 5x² - 15x

x³ + 2x² - 15

x³ + 2x² - 15 is your answer

hope this helps
User Quux
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