Question

1- Sejam os polinomios p(x) = 4x+2x²-x eq(x) = 4x² + 9x determine C(2) sendo C(x) = p(x)+q(x)

2- Considere p (x) = 5x3 + 3x²-5x+8 e q(x) = x3 + 2x² - x+ 8, calcule p(x)-q(x)

3- Considere q(x) = 2x3 + 5x2-x-3 eg (x)=x+2x²-x+3, calcule q(x) . g(x)



Alguém ajuda?

Answer 1

Resposta:

1)

C(x) = (4x^3 + 2x²-x) + (4x²+ 9x)

C(x) = 4x^3 + 6x²+ 8x

C(2) = 4(2)^3 + 6(2)² + 8(2)

C(2) = 4(8) + 24 + 16

C(2) = 72

2)

(5x^3 + 3x²-5x + 8) - (x^3 +2x²-x +8)

4x^3 - x² -4x

3) (2x^3 + 5x²-x - 3) . (x^3 + 2x²-x +3)

2x^6 + 10x^4 + x² -9