Datrys 6(7)-1/(7)^2-2(7)-63

$$\frac { 6 ( 7 ) - 1 } { ( 7 ) ^ { 2 } - 2 ( 7 ) - 63 }$$

Enrhifo

$$-\frac{41}{28}\approx -1.464285714$$

Camau Ateb

Lluosi 6 a 7 i gael 42.

$$\frac{42-1}{7^{2}-2\times 7-63}$$

Tynnu 1 o 42 i gael 41.

$$\frac{41}{7^{2}-2\times 7-63}$$

Cyfrifo 7 i bŵer 2 a chael 49.

$$\frac{41}{49-2\times 7-63}$$

Lluosi 2 a 7 i gael 14.

$$\frac{41}{49-14-63}$$

Tynnu 14 o 49 i gael 35.

$$\frac{41}{35-63}$$

Tynnu 63 o 35 i gael -28.

$$\frac{41}{-28}$$

Gellir ailysgrifennu \frac{41}{-28} fel -\frac{41}{28} drwy echdynnu’r arwydd negatif.

$$-\frac{41}{28}$$

Ffactor

$$-\frac{41}{28} = -1\frac{13}{28} = -1.4642857142857142$$