Question

10. Dados A = (x2 + 2x - 3), B = (2x2 + 2x - 2) e C = (-x2 - 2x - 1), determine:
a) A + B + C
B) B-C
c) A-B-C​

Answer 1

a) x2 + 2x - 3 + 2x2 + 2x -2 + -x2 -2x -1

b) 2x2 + 2x -2 - ( -x2 - 2x -1)

c) x2 + 2x -3 - 2x2 + 2x -2 - ( -x2 - 2x - 1)