Solve for y
y=10\left(20-x\right)\left(x-8\right)
Solve for x
x=\frac{\sqrt{3600-10y}}{10}+14
x=-\frac{\sqrt{3600-10y}}{10}+14\text{, }y\leq 360
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y=-10x^{2}+280x-1600
Use the distributive property to multiply x-8 by -10x+200 and combine like terms.
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