Question

x²/(x-3)- (x+6)/(x-3) -1 resolva

Answer 1

Vamos lá

x²/(x - 3) - (x + 6)/(x - 3) - 1 = 0

x²/(x - 3) - (x + 6)/(x - 3) - (x - 3)/(x - 3) = 0

x² - x - 6 - x - 3 = 0

x² - 2x - 9 = 0

d² = 4 + 36 = 40 = 4*10

d = 2√10

x1 = (2 + 2√10)/2 = 1 + √10

x2 = (2 - 2√10)/2 = 1 - √10