Datrys ar gyfer x
x=\sqrt{6}-1\approx 1.449489743
x=-\left(\sqrt{6}+1\right)\approx -3.449489743
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x+1=\sqrt{6} x+1=-\sqrt{6}
Cymryd isradd dwy ochr yr hafaliad.
x+1-1=\sqrt{6}-1 x+1-1=-\sqrt{6}-1
Tynnu 1 o ddwy ochr yr hafaliad.
x=\sqrt{6}-1 x=-\sqrt{6}-1
Mae tynnu 1 o’i hun yn gadael 0.
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