godwinw2005 godwinw2005

01-11-2020
Mathematics

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Find the coefficient of x² in (3x² – 5) (4 + 4x²)

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01-11-2020

(3x^2-5)(4+4x^2)
12x^2+12x^3-20-20x^2
12x^2-20x^2
-8x^2
coefficient of x^2= -8

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