Question

3)Dados P=x³+4x²-3x+7,P=3x³+6x-5 e P=x²+2x+3,determinar P1+P2+P3

Answer 1

P1=x³+4x²-3x+7
P2=3x³+6x-5
P3=x²+2x+3

P1 + P2 + P3 =
(x³+4x²-3x+7) + (3x³+6x-5) + (x²+2x+3)
x³ + 3x³ + 4x²+ x² - 3x +6x +2x +7 -5 +3
4x³ + 5x²+ 5x +5