Question

Sendo A(x)= 2x - 1, B(x) = x + 1 e C(x) = x - 2, obtenha P(x), sabendo que P = 2A + 3B + 5C.

Answer 1

P(x) = 2A + 3B + 5C

2(2x - 1) + 3(x + 1) + 5(x - 2) =

(4x - 2) + (3x + 3) + (5x - 10) =

(4x + 3x + 5x) + (- 2 + 3 - 10) =

P(x) = 12x - 9