Question

x-18/x=6, solve for x using quadratic formula​

Answer 1

Answer:

$x - \frac{18}{x} = 6 \\ \\ = > {x}^{2} - 18 = 6x \\ \\ = > {x}^{2} - 6x - 18 = 0 \\ \\ = > x = \frac{6 + \sqrt{36 - 4(1)( - 18)} }{2} \:, \: \frac{6 - \sqrt{36 - 4(1)( - 18)} }{2} \\ \\ = > x = 3 + 3\sqrt{3} \:, \: 3 - 3 \sqrt{3}$

Answer 2

Answer:

x²-18=6x

x²-18-6x=0

x²-9x+2x-18=0

x(x-9)+2(x-9)=0

x+2(x-9)=0

x= -2,x=9