Datrys (6371.634^2)=0.634^2+x^2

$$( { 6371.634 }^{ 2 } )= { 0.634 }^{ 2 } + { x }^{ 2 }$$

Datrys ar gyfer x

$$x = \frac{\sqrt{101494298570}}{50} \approx 6371.633968457$$

$$x = -\frac{\sqrt{101494298570}}{50} \approx -6371.633968457$$

Camau drwy Ganfod Isradd

Cyfrifo 6371.634 i bŵer 2 a chael 40597719.829956.

$$40597719.829956=0.634^{2}+x^{2}$$

Cyfrifo 0.634 i bŵer 2 a chael 0.401956.

$$40597719.829956=0.401956+x^{2}$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$0.401956+x^{2}=40597719.829956$$

Tynnu 0.401956 o'r ddwy ochr.

$$x^{2}=40597719.829956-0.401956$$

Tynnu 0.401956 o 40597719.829956 i gael 40597719.428.

$$x^{2}=40597719.428$$

Cymryd isradd dwy ochr yr hafaliad.

$$x=\frac{\sqrt{101494298570}}{50} x=-\frac{\sqrt{101494298570}}{50}$$

Camau gan Ddefnyddio’r Fformiwla Cwadratig

Cyfrifo 6371.634 i bŵer 2 a chael 40597719.829956.

$$40597719.829956=0.634^{2}+x^{2}$$

Cyfrifo 0.634 i bŵer 2 a chael 0.401956.

$$40597719.829956=0.401956+x^{2}$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$0.401956+x^{2}=40597719.829956$$

Tynnu 40597719.829956 o'r ddwy ochr.

$$0.401956+x^{2}-40597719.829956=0$$

Tynnu 40597719.829956 o 0.401956 i gael -40597719.428.

$$-40597719.428+x^{2}=0$$

Ar gyfer hafaliadau cwadratig fel yr un hwn, gyda therm x^{2} ond dim term x, mae modd eu datrys drwy ddefnyddio'r fformiwla cwadratig, \frac{-b±\sqrt{b^{2}-4ac}}{2a}., unwaith y cânt eu rhoi ar ffurf safonol: ax^{2}+bx+c=0.

$$x^{2}-40597719.428=0$$

Mae’r hafaliad hwn yn y ffurf safonol: ax^{2}+bx+c=0. Amnewidiwch 1 am a, 0 am b, a -40597719.428 am c yn y fformiwla gwadratig, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.

$$x=\frac{0±\sqrt{0^{2}-4\left(-40597719.428\right)}}{2}$$

Sgwâr 0.

$$x=\frac{0±\sqrt{-4\left(-40597719.428\right)}}{2}$$

Lluoswch -4 â -40597719.428.

$$x=\frac{0±\sqrt{162390877.712}}{2}$$

Cymryd isradd 162390877.712.

$$x=\frac{0±\frac{\sqrt{101494298570}}{25}}{2}$$

Datryswch yr hafaliad x=\frac{0±\frac{\sqrt{101494298570}}{25}}{2} pan fydd ± yn plws.

$$x=\frac{\sqrt{101494298570}}{50}$$

Datryswch yr hafaliad x=\frac{0±\frac{\sqrt{101494298570}}{25}}{2} pan fydd ± yn minws.

$$x=-\frac{\sqrt{101494298570}}{50}$$

Mae’r hafaliad wedi’i ddatrys nawr.

$$x=\frac{\sqrt{101494298570}}{50} x=-\frac{\sqrt{101494298570}}{50}$$