(4xsquare+2x) (7xsquare-5)
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Step-by-step explanation:
(4x² + 2x)(7x² -5)
=(4x²)(7x² - 5) + (2x)(7x² - 5)
=28x^4 - 20x² + 14x³ - 10x
= 28x^4 + 14x³ - 20x² - 10x
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