Question

Podem resolver pra mim ?

Answer 1

Ola Viny

(x + 4)*(y + 2) = 60

x*y = 24

x*y + 4y + 2x + 8 = 60 

24 + 8 + 4y + 2x = 60

4y + 2x = 60 - 32 = 28

2y + x = 14

x = 14 -2y

(14 - 2y)*y = 24

2y² - 14y + 24 = 0

y² - 7y + 12 = 0

delta
d² = 49 - 48 = 1
d = 1

y = (7 + 1)/2 = 8/2 = 4
x = 14 - 2y = 14 - 8 = 6

.