Datrys ar gyfer x
x=4\left(\sqrt{2}-1\right)\approx 1.656854249
Graff
Rhannu
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\left(\sqrt{2}+1\right)x=4
Cyfuno pob term sy'n cynnwys x.
\frac{\left(\sqrt{2}+1\right)x}{\sqrt{2}+1}=\frac{4}{\sqrt{2}+1}
Rhannu’r ddwy ochr â \sqrt{2}+1.
x=\frac{4}{\sqrt{2}+1}
Mae rhannu â \sqrt{2}+1 yn dad-wneud lluosi â \sqrt{2}+1.
x=4\sqrt{2}-4
Rhannwch 4 â \sqrt{2}+1.
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