Datrys {l}{A=(3-5)^2}{B=(9-7)^3}{C=(-1/2+1/3)^2}

$$\left. \begin{array} { l } { A = ( 3 - 5 ) ^ { 2 } } \\ { B = ( 9 - 7 ) ^ { 3 } } \\ { C = ( - \frac { 1 } { 2 } + \frac { 1 } { 3 } ) ^ { 2 } } \end{array} \right.$$

Datrys ar gyfer A, B, C

$$A=4$$

$$B=8$$

$$C=\frac{1}{36}\approx 0.027777778$$

Camau Ateb

Ystyriwch yr hafaliad cyntaf. Tynnu 5 o 3 i gael -2.

$$A=\left(-2\right)^{2}$$

Cyfrifo -2 i bŵer 2 a chael 4.

$$A=4$$

Ystyriwch yr ail hafaliad. Tynnu 7 o 9 i gael 2.

$$B=2^{3}$$

Cyfrifo 2 i bŵer 3 a chael 8.

$$B=8$$

Ystyriwch y trydydd hafaliad. Adio -\frac{1}{2} a \frac{1}{3} i gael -\frac{1}{6}.

$$C=\left(-\frac{1}{6}\right)^{2}$$

Cyfrifo -\frac{1}{6} i bŵer 2 a chael \frac{1}{36}.

$$C=\frac{1}{36}$$

Mae’r system wedi’i datrys nawr.

$$A=4 B=8 C=\frac{1}{36}$$