Question

Determine o valor de x​

Answer 1

a) x² = 121

x = ± √121

x = ± 11

b) 3x² = 243

x² = 243/3

x² = 81

x = ± √81

x = ± 9

c) 2x² = x * 6

2x = 6

x = 6/2

x = 3

d) x²/3 - 2x = 0

x²/3 - 6x/3 = 0/3

x² - 6x = 0

x(x - 6) = 0

x = 0

ou

x - 6 = 0

x = 6