Respuesta:
a) 4x-5-6x+7x-6+12x-3Xx= 12x³-9x²+11x-11
b) 4a-(a-b)+3(b-a)= 6a+4b
c) [(1/4x2+1/5x)-1/6]+[3/4x2-3/5x)+5/8]= 1/120x(120x2-48x+55)
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Respuesta:
a) 4x-5-6x+7x-6+12x-3Xx= 12x³-9x²+11x-11
b) 4a-(a-b)+3(b-a)= 6a+4b
c) [(1/4x2+1/5x)-1/6]+[3/4x2-3/5x)+5/8]= 1/120x(120x2-48x+55)