Question

2. Calcule o valor numérico das expressões:
a) x - y; para x = 8 ey = 5
b) 2x + y; para x = 1e y = 8
c)
2x - 3y; para x = 9e y = 1
d)
x²; para x = 2​

Answer 1

Whats up. Very easy.

A) 8 - 5 = 3
B) 2.1 + 8 = 10
C) 9.2- (3.1) = 18 - 3 = 15
D) 2^2 = 4