Datrys ar gyfer y
y=10\left(20-x\right)\left(x-8\right)
Datrys ar gyfer x
x=\frac{\sqrt{3600-10y}}{10}+14
x=-\frac{\sqrt{3600-10y}}{10}+14\text{, }y\leq 360
Graff
Rhannu
Copïo i clipfwrdd
y=-10x^{2}+280x-1600
Defnyddio’r briodwedd ddosbarthu i luosi x-8 â -10x+200 a chyfuno termau tebyg.
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