Réitigh 25(1-x)^2=16

$$25 ( 1 - x ) ^ { 2 } = 16$$

Réitigh do x.

$$x=\frac{1}{5}=0.2$$

$$x = \frac{9}{5} = 1\frac{4}{5} = 1.8$$

Céimeanna tríd an bhFréamh Chearnach a Fháil

Roinn an dá thaobh faoi 25.

$$\frac{25\left(-x+1\right)^{2}}{25}=\frac{16}{25}$$

Má roinntear é faoi 25 cuirtear an iolrúchán faoi 25 ar ceal.

$$\left(-x+1\right)^{2}=\frac{16}{25}$$

Tóg fréamh chearnach an dá thaobh den chothromóid.

$$-x+1=\frac{4}{5} -x+1=-\frac{4}{5}$$

Bain 1 ón dá thaobh den chothromóid.

$$-x+1-1=\frac{4}{5}-1 -x+1-1=-\frac{4}{5}-1$$

Má dhealaítear 1 uaidh féin faightear 0.

$$-x=\frac{4}{5}-1 -x=-\frac{4}{5}-1$$

Dealaigh 1 ó \frac{4}{5}.

$$-x=-\frac{1}{5}$$

Dealaigh 1 ó -\frac{4}{5}.

$$-x=-\frac{9}{5}$$

Roinn an dá thaobh faoi -1.

$$\frac{-x}{-1}=-\frac{\frac{1}{5}}{-1} \frac{-x}{-1}=-\frac{\frac{9}{5}}{-1}$$

Má roinntear é faoi -1 cuirtear an iolrúchán faoi -1 ar ceal.

$$x=-\frac{\frac{1}{5}}{-1} x=-\frac{\frac{9}{5}}{-1}$$

Roinn -\frac{1}{5} faoi -1.

$$x=\frac{1}{5}$$

Roinn -\frac{9}{5} faoi -1.

$$x=\frac{9}{5}$$

Tá an chothromóid réitithe anois.

$$x=\frac{1}{5} x=\frac{9}{5}$$