Datrys 4a_n^2+105n=98

$$4 a _ { n } ^ { 2 } + 105 n = 98$$

Datrys ar gyfer n

$$n=-\frac{4a_{n}^{2}}{105}+\frac{14}{15}$$

Camau ar gyfer Datrys Hafaliad Llinol

Tynnu 4a_{n}^{2} o'r ddwy ochr.

$$105n=98-4a_{n}^{2}$$

Rhannu’r ddwy ochr â 105.

$$\frac{105n}{105}=\frac{98-4a_{n}^{2}}{105}$$

Mae rhannu â 105 yn dad-wneud lluosi â 105.

$$n=\frac{98-4a_{n}^{2}}{105}$$

Rhannwch 98-4a_{n}^{2} â 105.

$$n=-\frac{4a_{n}^{2}}{105}+\frac{14}{15}$$

Datrys ar gyfer a_n (complex solution)

$$a_{n}=-\frac{\sqrt{98-105n}}{2}$$

$$a_{n}=\frac{\sqrt{98-105n}}{2}$$

Datrys ar gyfer a_n

$$a_{n}=\frac{\sqrt{98-105n}}{2}$$

$$a_{n}=-\frac{\sqrt{98-105n}}{2}\text{, }n\leq \frac{14}{15}$$