Datrys ar gyfer y
y=-\left(\left(x-4\right)^{2}+3\right)
Datrys ar gyfer x (complex solution)
x=-i\sqrt{y+3}+4
x=i\sqrt{y+3}+4
Datrys ar gyfer x
x=-\sqrt{-y-3}+4
x=\sqrt{-y-3}+4\text{, }y\leq -3
Graff
Rhannu
Copïo i clipfwrdd
y=-\left(x^{2}-8x+16\right)-3
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(x-4\right)^{2}.
y=-x^{2}+8x-16-3
I ddod o hyd i wrthwyneb x^{2}-8x+16, dewch o hyd i wrthwyneb pob term.
y=-x^{2}+8x-19
Tynnu 3 o -16 i gael -19.
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