Datrys ar gyfer x
x=-3\sqrt{2}\approx -4.242640687
Graff
Rhannu
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\left(-5\sqrt{2}\right)x=30
Ffactora 50=5^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 2} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{2}. Cymryd isradd 5^{2}.
\frac{\left(-5\sqrt{2}\right)x}{-5\sqrt{2}}=\frac{30}{-5\sqrt{2}}
Rhannu’r ddwy ochr â -5\sqrt{2}.
x=\frac{30}{-5\sqrt{2}}
Mae rhannu â -5\sqrt{2} yn dad-wneud lluosi â -5\sqrt{2}.
x=-3\sqrt{2}
Rhannwch 30 â -5\sqrt{2}.
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