Question

Dados os polimonios : A(x)= 2x³-5x²-x+21 e B(x)=2x³+x²-2x+5, d, determine A(x)+B(x)

Answer 1

2x³-5x²-x+21
2x³+x²-2x+5
----------------
4x³-4x²-3x+26

Answer 2

2x³-5x²-x+21  +
2x³+x²-2x+5
------------------
4x³-4x²-3x+26