32 (x + 4) - 52 = 5 . 22
32 (x + 4) - 52 = 5 . 4
32 (x + 4) - 52 = 20
32 (x + 4) = 20 + 52
32 (x + 4) = 20 + 25
32 (x + 4) = 45
x + 4 = 45 : 32
x + 4 = 45 : 9
x + 4= 5
x = 5 - 4
x = 1.
\(3^2\)(x+4) - 5^2 = 5*2^2
9(x + 4) -25= 5*4
9(x+4) = 20+25
x+4 = 45/9
x+4=5
x = 5-4
x = 1
Vậy x = 1