Question

40. Calcule o valor numérico do polinômio
13x2 + 8y - 4 para:
a) x = 1e y = 2
b) x = 2 ey=0.
c)x= 3 ey=-1.
d) x = -2 ey=3​

Answer 1

Resposta:

Olá!

Explicação passo-a-passo:

40. $13x^2+8y-4$

a) x = 1 e y = 2

$13.(1)^2+8.(2)-4$

$13+16-4$

$29-4$

$25$

b) x = 2 e y = 0

$13.(2)^2+8.0-4$

$13.4+0-4$

$52-4$

$48$

c) x = 3 e y = -1

$13.(3)^2+8.(-1)-4$

$13.9-8-4$

$117-8-4$

$109-4$

$105$

d) x = -2 e y = 3

$13.(-2)^2+8.3-4$

$13.4+24-4$

$52+24-4$

$76-4$

$72$

Bons Estudos!