The least common multiple can be found a couple of ways. For this, it is probably easiest to identify the unique factors of each expression. (6x -18) = 6(x -3) = 2*3*(x -3)
(2x² -6x) = 2x(x -3)
Then the unique factors are 2, 3, x, (x -3). Their product is the LCM: LCM = 6x(x -3) = 6x² -18x
_____ If one or more of the factors is raised to a power other than 1, use the highest power of that factor in the final product.
I got this because Kira is x-8 and Ryan is 4x. 4x-x-8=112 is equal to 5x=120. So x=24.Kira has 16 when plugging in x and Ryan has 96 because 4 times 24 is 96.
