Question

Sendo A = 2x3 – x2 + 3, B = x4 – 2x3 + x e C = –2x4, determine:
A+B+C

Answer 1

( 2 3 − 1 2 + 3 4 − 2 3 + ) + ( 2 4 )

( − 1 2 + 3 4 + ) + ( 2 4 )

( 3 4 − 1 2 + ) + ( 2 4)

3 4 − 1 2 + + 2 4

5 4 − 1 2 +

Resposta-

5 4 − 1 2 +