Datrys (-5)^2-3^2+(2/3)^0/3^-2+frac{1{5}+1/2}

$$\frac { ( - 5 ) ^ { 2 } - 3 ^ { 2 } + ( \frac { 2 } { 3 } ) ^ { 0 } } { 3 ^ { - 2 } + \frac { 1 } { 5 } + \frac { 1 } { 2 } }$$

Enrhifo

$$\frac{1530}{73}\approx 20.95890411$$

Camau Ateb

Cyfrifo -5 i bŵer 2 a chael 25.

$$\frac{25-3^{2}+\left(\frac{2}{3}\right)^{0}}{3^{-2}+\frac{1}{5}+\frac{1}{2}}$$

Cyfrifo 3 i bŵer 2 a chael 9.

$$\frac{25-9+\left(\frac{2}{3}\right)^{0}}{3^{-2}+\frac{1}{5}+\frac{1}{2}}$$

Tynnu 9 o 25 i gael 16.

$$\frac{16+\left(\frac{2}{3}\right)^{0}}{3^{-2}+\frac{1}{5}+\frac{1}{2}}$$

Cyfrifo \frac{2}{3} i bŵer 0 a chael 1.

$$\frac{16+1}{3^{-2}+\frac{1}{5}+\frac{1}{2}}$$

Adio 16 a 1 i gael 17.

$$\frac{17}{3^{-2}+\frac{1}{5}+\frac{1}{2}}$$

Cyfrifo 3 i bŵer -2 a chael \frac{1}{9}.

$$\frac{17}{\frac{1}{9}+\frac{1}{5}+\frac{1}{2}}$$

Adio \frac{1}{9} a \frac{1}{5} i gael \frac{14}{45}.

$$\frac{17}{\frac{14}{45}+\frac{1}{2}}$$

Adio \frac{14}{45} a \frac{1}{2} i gael \frac{73}{90}.

$$\frac{17}{\frac{73}{90}}$$

Rhannwch 17 â \frac{73}{90} drwy luosi 17 â chilydd \frac{73}{90}.

$$17\times \frac{90}{73}$$

Lluosi 17 a \frac{90}{73} i gael \frac{1530}{73}.

$$\frac{1530}{73}$$

Ffactor

$$\frac{2 \cdot 3 ^ {2} \cdot 5 \cdot 17}{73} = 20\frac{70}{73} = 20.958904109589042$$