Datrys 5*(left(81-85.5right)^2+left(90.875-85.5right)^2+left(84.625-85.5right)^2)

$$5 \times ( { \left(81-85.5 \right) }^{ 2 } + { \left(90.875-85.5 \right) }^{ 2 } + { \left(84.625-85.5 \right) }^{ 2 } )$$

Enrhifo

$$249.53125$$

Camau Ateb

Tynnu 85.5 o 81 i gael -4.5.

$$5\left(\left(-4.5\right)^{2}+\left(90.875-85.5\right)^{2}+\left(84.625-85.5\right)^{2}\right)$$

Cyfrifo -4.5 i bŵer 2 a chael 20.25.

$$5\left(20.25+\left(90.875-85.5\right)^{2}+\left(84.625-85.5\right)^{2}\right)$$

Tynnu 85.5 o 90.875 i gael 5.375.

$$5\left(20.25+5.375^{2}+\left(84.625-85.5\right)^{2}\right)$$

Cyfrifo 5.375 i bŵer 2 a chael 28.890625.

$$5\left(20.25+28.890625+\left(84.625-85.5\right)^{2}\right)$$

Adio 20.25 a 28.890625 i gael 49.140625.

$$5\left(49.140625+\left(84.625-85.5\right)^{2}\right)$$

Tynnu 85.5 o 84.625 i gael -0.875.

$$5\left(49.140625+\left(-0.875\right)^{2}\right)$$

Cyfrifo -0.875 i bŵer 2 a chael 0.765625.

$$5\left(49.140625+0.765625\right)$$

Adio 49.140625 a 0.765625 i gael 49.90625.

$$5\times 49.90625$$

Lluosi 5 a 49.90625 i gael 249.53125.

$$249.53125$$

Ffactor

$$\frac{5 \cdot 1597}{2 ^ {5}} = 249\frac{17}{32} = 249.53125$$