Question 397255

{{{4x(x-9)-5x(x-8)=-5}}}

{{{4x^2 -4x*9-5x^2 -5x*(-8) =-5}}}

{{{4x^2 -36x -5x^2 +40x =-5}}}


{{{-x^2 +4x = -5}}}

{{{-x^2 +4x + 5 = 0}}}......use quadratic formula


*[invoke quadratic_formula -1, 4, 5, "x"]