Datrys ar gyfer y
y=-5\left(x+9\right)^{2}
Datrys ar gyfer x (complex solution)
x=-\frac{i\sqrt{5y}}{5}-9
x=\frac{i\sqrt{5y}}{5}-9
Datrys ar gyfer x
x=-\frac{\sqrt{-5y}}{5}-9
x=\frac{\sqrt{-5y}}{5}-9\text{, }y\leq 0
Graff
Rhannu
Copïo i clipfwrdd
y=-5\left(x^{2}+18x+81\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+9\right)^{2}.
y=-5x^{2}-90x-405
Defnyddio’r briodwedd ddosbarthu i luosi -5 â x^{2}+18x+81.
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