18x squared is 324x
20x cubed is 8000x
324x - 8000x = -7676x
voila!
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11x = 20x +1811x-20x=18x(11-20)=18-9x=18x=-2
x(x - 19)(x - 1)
Divide all terms by 2 and it can then be factored to (2x+1)(5x+2)
They touch each other at (0, 100) on the x and y axis.
20x2 - 3x + 10 does not have any real factors.