Question

P(x)2x4-2x3-x+2 + Q(x)x2 +x+1

Answer 1

P(x)2x4-2x3-x+2 + Q(x)x2 +x+1
P(x) + Q(x) =

2x⁴ - 2x³ - x + 2 + x² + x + 1     junta termos iguais
2x⁴ - 2x³ + x² - x + x + 2 + 1
2x⁴ - 2x³ + x²      0       + 3

2x⁴ - 2x³ + x² + 3