Question

Me ajude a resolver

x+y=2
(x ao quadrado)+y=4

Answer 1

Ola Diully

x + y = 2
x² + y = 4

y = 2 - x

x² - x + 2 = 4

x² - x - 2 = 0

delta
d² = 1 + 8 = 9
d = 3

x1 = (1 + 3)/2 = 4/2 = 2
x2 = (1 - 3)/2 = -2/2 = -1