Question

Siendo p(x) = 3x3 - x2 + 2x, q(x) = 3x3 + x2 - 3x - 4 y r(x) = 2x2 - 7x + 6, calcula:
a) p(x) - q(x) + r(x) =

Answer 1

3x3-x2+2x-(3x3+x2-3x-4)+2x2-7x+6

3x3-x2+2x-3x3-x2+3x+4+2x2-7x+6

10-2x