Question

Qual o valor numérico de 5x²y + 4x²y² -3 para: x= -2 y= 3

Answer 1

5x²y + 4x²y² -3

x= -2 y= 3

5 * (-2)² * 3 + 4 * (-2)² * (3)² - 3

5 * 4 * 3 + 4 * 4 * 9 - 3 = 201

Se for   5x³y + 4x²y² -3

5 * (-2)³ * 3 + 4 * (-2)² * (3)² -3
                                                                                                                                      5*(-8)*3+4*4*9 -3 =21

Answer 2

$5x^2y+4x^2y^2-3 x= -2 y = 3 5.(-2)^2.3+4.(-2)^2.(3)^2 - 3 = 5.4.3+4.4.9-3 = 60+144-3 = 204-3 = 201 Bons estudos! :)$