Question

) A + B + C, sendo dados:
A = x? - 2x + 2; B = 3x2 + 4x-5 e
C= 4x - 1​

Answer 1

Resposta:

a) A+B+C=x²-2x+2+3x²+4x-5+4x-1=4x²+6x-4

b) A-B-C=x²-2x+2-3x²-4x+5-4x+1=-3x²-10x+8

c) C-2A=4x-1-2*(x²-2x+2)=4x-1-2x²+4x-4=-2x²+8x-5