3x + 9 = 3²
√[5x + 4] = 3
√[x² + 5] = 3
(2³ – x)² = 25
x² / 2 = 2³
√[3x + 1] = 2²
(5² – 7) / 3 = x
(5² – x) / 2 = 9
√[2x] + 3 = 7
5√[x] –7 = 8
