Ako riešite 3 / (2x) -9 / 2 = 6x?

Ako riešite 3 / (2x) -9 / 2 = 6x?
Anonim

odpoveď:

# x = 1/4, -1 #

vysvetlenie:

# 3 / (2x) -9/2 = 6x #

# 3 / (2 x) - (9x) / (2 x) = 6x #

# (3-9x) / (2 x) = 6x #

# 3-9x = 12x ^ 2 #

# 12x ^ 2 + 9x-3 = 0 #

# 4x ^ 2 + 3-1 = 0 #

# (4x-1), (x + 1) = 0 #

# x = 1/4, -1 #