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OpenStudy (taepoohwae):
expand the polynomial (7x+4)+(-8x+3)
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OpenStudy (anonymous):
(7x+4)+(-8x+3)=7x+4-8x+3 (As +* - = - ie plus multiplies minus = minus) =7x-8x+4+3 =-x+7 is your required answer..
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