Respuesta :

altavistard
I'm assuming that when you wrote "(7x/2-5x+3)+(2x/2+4x-6)," you actually meant "(7x^2-5x+3)+(2x^2+4x-6).  Correct me if I'm wrong here.

+(7x^2-5x+3)
+(2x/2+4x-6)
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=9x^2 - x - 3 (answer)