Homework Sourse20x920xxx9 need help 20x920xxx9 need help 20x920xxx9 need he
20(x-9)+20x=x(x-9) need help
20(x-9)+20x=x(x-9) need help
20(x-9)+20x=x(x-9) need help
Solution
20( x-9) + 20x = x(x-9)
20x - 180 + 20x = x^2 - 9x
bringing all terms on one side
x^2 - 49x + 180 = 0
( x - 45) (x-4) = 0
x = 45
x = 4
