1)dados os polinomios A=2x³+4x²-3x+2, B=2x³+3x²+4x-1, C=x³-x²+x-5 a)A+B= b)A-B= c)A+C= d)A-C= e)B+C= f)A+B+C= g)B-A-C= h)A-B+C=
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A=2x³+4x²-3x+2, B=2x³+3x²+4x-1 e C=x³-x²+x-5
A)A+B=2x³+4x²-3x+2+2x³+3x²+4x-1=4x³+7x²+1x+1
B)A-B=2x³+4x²-3x+2-2x³+3x²+4x-1=7x²+1x+1
C)A+C=2x³+4x²-3x+2+x³-x²+x-5=3x³+3x²-2x-3
D)A-C=2x³+4x²-3x+2-x³-x²+x-5=x³+3x²-2x-3
E)B+C=2x³+3x²+4x-1+x³-x²+x-5=3x³+2x²+5x-6
F)A+B+C=2x³+4x²-3x+2+2x³+3x²+4x-1+x³-x²+x-5=5x³+6x²+2x-5
G)A-B-C=2x³+4x²-3x+2-2x³+3x²+4x-1-x³-x²+x-5=-1x³+6x²+2x-4
H)A-B+C=2x³+4x²-3x+2-2x³+3x²+4x-1+x³-x²+x-5=x³+6x²+2x-4
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