Raymond B. answered 01/07/26
Math, microeconomics or criminal justice
x/(2x-9) - 3x = 10/(9-2x)
graph it, x= about -0.327 and exactly 5= the x intercepts = two real solutions or
multiply by LCD = (2x-9)(9-2x)
x(9-2x) -3x(2x-9)(9-2x) = 10(2x-9)
9x -2x^2 +12x^3 - 108x^2 +243x = 20x-90
combine like terms
12x^3 -110x^2 +232x +90 = 0
6x^3 -55x^2 + 116x+ 45 = 0
either factor, use the cubic formula or graph it
x = about -0.3, and exactly 5 and 4.5 4.5 is a false extraneous solution. cubic formula is complicated and difficult to use, virtually unknown too.