Datrys left(x-3right)^2=5

$${ \left(x-3 \right) }^{ 2 } =5$$

Datrys ar gyfer x

$$x=\sqrt{5}+3\approx 5.236067977$$

$$x=3-\sqrt{5}\approx 0.763932023$$

Camau drwy Ganfod Isradd

Cymryd isradd dwy ochr yr hafaliad.

$$x-3=\sqrt{5} x-3=-\sqrt{5}$$

Adio 3 at ddwy ochr yr hafaliad.

$$x-3-\left(-3\right)=\sqrt{5}-\left(-3\right) x-3-\left(-3\right)=-\sqrt{5}-\left(-3\right)$$

Mae tynnu -3 o’i hun yn gadael 0.

$$x=\sqrt{5}-\left(-3\right) x=-\sqrt{5}-\left(-3\right)$$

Tynnu -3 o \sqrt{5}.

$$x=\sqrt{5}+3$$

Tynnu -3 o -\sqrt{5}.

$$x=3-\sqrt{5}$$

Mae’r hafaliad wedi’i ddatrys nawr.

$$x=\sqrt{5}+3 x=3-\sqrt{5}$$