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28-07-2020
Mathematics

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Which expression is equal to 5(2x^2-1)+3(7x^2+1)

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SvetkaChem SvetkaChem

28-07-2020

Answer:

31x² - 2

Step-by-step explanation:

5(2x²-1)+3(7x²+1) = 5*2x² - 5*1 + 3*7x² + 3 = 10x² - 5 + 21x² + 3 = 31x² - 2

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