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OpenStudy (anonymous):
Simplify the expression (4x − 3)(x + 5).
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OpenStudy (xxdragoonxx):
= 4x*x+4x*5−3*x−3*5 = 4x*x+5*4x−3*x−3*5 = 4x^2+20x−3x−15 = 4x^2+17x-15
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