Datrys 2(-2/5)div(-3/10)^4

$$2 ( \frac { - 2 } { 5 } ) \div ( \frac { - 3 } { 10 } ) ^ { 4 }$$

Enrhifo

$$-\frac{8000}{81}\approx -98.765432099$$

Camau Ateb

Gellir ailysgrifennu \frac{-2}{5} fel -\frac{2}{5} drwy echdynnu’r arwydd negatif.

$$\frac{2\left(-\frac{2}{5}\right)}{\left(\frac{-3}{10}\right)^{4}}$$

Lluosi 2 a -\frac{2}{5} i gael -\frac{4}{5}.

$$\frac{-\frac{4}{5}}{\left(\frac{-3}{10}\right)^{4}}$$

Gellir ailysgrifennu \frac{-3}{10} fel -\frac{3}{10} drwy echdynnu’r arwydd negatif.

$$\frac{-\frac{4}{5}}{\left(-\frac{3}{10}\right)^{4}}$$

Cyfrifo -\frac{3}{10} i bŵer 4 a chael \frac{81}{10000}.

$$\frac{-\frac{4}{5}}{\frac{81}{10000}}$$

Rhannwch -\frac{4}{5} â \frac{81}{10000} drwy luosi -\frac{4}{5} â chilydd \frac{81}{10000}.

$$-\frac{4}{5}\times \frac{10000}{81}$$

Lluosi -\frac{4}{5} a \frac{10000}{81} i gael -\frac{8000}{81}.

$$-\frac{8000}{81}$$

Ffactor

$$-\frac{8000}{81} = -98\frac{62}{81} = -98.76543209876543$$