Question

2) Determine o valor das expressões:
a) 2.( +4)² =
b) 3.(-2)⁵=
c) 2.(-5)² - 3.(+4)²=
d) 3.(-6)²-2.(-3)³=​

Answer 1

Oie, td bom?

$a) 2.(4)^2 =\\2 + 16 = 18\\\\b)\\3.(-2)^5 =\\3 - 32 = - 29\\\\c) \\2.(-5)^2 - 3.(4)^2 = \\2 . 25 - 3,4^2 =\\50 - 3..16 =\\50 - 48 = 2\\\\d)\\3.(-6)^2 - 2.(-3)^3 =\\3.36 - 2(-3)^3=\\108 - 2(-27) =\\108 -(-54) =\\108 + 54 = 162$

Espero ter ajudado...tchau e bons estudos!!