Question

qual o valor da expressao 30X³+4X²Y³ PARA X= -2 9Y=2 ?​

Answer 1

30X³+4X²Y³ PARA
X= -2
Y=2
= 30.(-2)^3 + 4.(-2)^2.2^3
= 30.(-8) + 4.4.8
= - 240 + 4.32
= - 240 + 128
= - 112