Leysa 0.49-x^2/0.7-xtext{para}x=-1.3é

$$\frac { 0.49 - x ^ { 2 } } { 0.7 - x } \text { para } x = - 1.3 é$$

Leystu fyrir p (complex solution)

$$\left\{\begin{matrix}p=-\frac{13é}{rx\left(10x+7\right)a^{2}}\text{, }&a\neq 0\text{ and }r\neq 0\text{ and }x\neq -\frac{7}{10}\text{ and }x\neq 0\text{ and }x\neq \frac{7}{10}\\p\in \mathrm{C}\text{, }&\left(a=0\text{ or }r=0\text{ or }x=-\frac{7}{10}\text{ or }x=0\right)\text{ and }é=0\text{ and }x\neq \frac{7}{10}\end{matrix}\right.$$

Skref til að leysa línulega jöfnu

Margfaldaðu a og a til að fá út a^{2}.

$$\frac{0.49-x^{2}}{0.7-x}pa^{2}rx=-1.3é$$

Jafnan er í staðalformi.

$$\left(-rx\left(-x-0.7\right)a^{2}\right)p=-\frac{13é}{10}$$

Deildu báðum hliðum með -\left(-x-0.7\right)a^{2}rx.

$$\frac{\left(-rx\left(-x-0.7\right)a^{2}\right)p}{-rx\left(-x-0.7\right)a^{2}}=-\frac{\frac{13é}{10}}{-rx\left(-x-0.7\right)a^{2}}$$

Að deila með -\left(-x-0.7\right)a^{2}rx afturkallar margföldun með -\left(-x-0.7\right)a^{2}rx.

$$p=-\frac{\frac{13é}{10}}{-rx\left(-x-0.7\right)a^{2}}$$

Deildu -\frac{13é}{10} með -\left(-x-0.7\right)a^{2}rx.

$$p=-\frac{13é}{10rx\left(x+\frac{7}{10}\right)a^{2}}$$

Leystu fyrir p

$$\left\{\begin{matrix}p=-\frac{13é}{rx\left(10x+7\right)a^{2}}\text{, }&a\neq 0\text{ and }r\neq 0\text{ and }x\neq 0\text{ and }|x|\neq \frac{7}{10}\\p\in \mathrm{R}\text{, }&\left(a=0\text{ or }r=0\text{ or }x=-\frac{7}{10}\text{ or }x=0\right)\text{ and }é=0\text{ and }x\neq \frac{7}{10}\end{matrix}\right.$$

Skref til að leysa línulega jöfnu

Margfaldaðu a og a til að fá út a^{2}.

$$\frac{0.49-x^{2}}{0.7-x}pa^{2}rx=-1.3é$$

Jafnan er í staðalformi.

$$\left(-rx\left(-x-0.7\right)a^{2}\right)p=-\frac{13é}{10}$$

Deildu báðum hliðum með -\left(-x-0.7\right)a^{2}rx.

$$\frac{\left(-rx\left(-x-0.7\right)a^{2}\right)p}{-rx\left(-x-0.7\right)a^{2}}=-\frac{\frac{13é}{10}}{-rx\left(-x-0.7\right)a^{2}}$$

Að deila með -\left(-x-0.7\right)a^{2}rx afturkallar margföldun með -\left(-x-0.7\right)a^{2}rx.

$$p=-\frac{\frac{13é}{10}}{-rx\left(-x-0.7\right)a^{2}}$$

Deildu -\frac{13é}{10} með -\left(-x-0.7\right)a^{2}rx.

$$p=-\frac{13é}{10rx\left(x+\frac{7}{10}\right)a^{2}}$$

Leystu fyrir a (complex solution)

$$\left\{\begin{matrix}a=-ip^{-0.5}r^{-0.5}x^{-0.5}\left(10x+7\right)^{-0.5}\sqrt{13é}\text{; }a=ip^{-0.5}r^{-0.5}x^{-0.5}\left(10x+7\right)^{-0.5}\sqrt{13é}\text{, }&x\neq 0\text{ and }r\neq 0\text{ and }p\neq 0\text{ and }x\neq -\frac{7}{10}\text{ and }x\neq \frac{7}{10}\\a\in \mathrm{C}\text{, }&x\neq \frac{7}{10}\text{ and }\left(r=0\text{ or }p=0\text{ or }x=-\frac{7}{10}\text{ or }x=0\right)\text{ and }é=0\end{matrix}\right.$$