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Mathematics 16 Online
OpenStudy (anonymous):

how would i solve this combining like terms? (x+4)(x-2)

jimthompson5910 (jim_thompson5910):

Use FOIL to get (x+4)(x-2) (x)(x)+(x)(-2)+(4)(x)+(4)(-2) x^2-2x+4x-8 x^2+2x-8 So (x+4)(x-2)=x^2+2x-8

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