Datrys 7-8.4*0.1+3*(-4*0.25+3^2)+4.1+2

$$7 - 8.4 \cdot 0.1 + 3 \cdot ( - 4 \cdot 0.25 + 3 ^ { 2 } ) + 4.1 + 2$$

Enrhifo

$$36.26$$

Camau Ateb

Lluosi 8.4 a 0.1 i gael 0.84.

$$7-0.84+3\left(-4\times 0.25+3^{2}\right)+4.1+2$$

Tynnu 0.84 o 7 i gael 6.16.

$$6.16+3\left(-4\times 0.25+3^{2}\right)+4.1+2$$

Lluosi -4 a 0.25 i gael -1.

$$6.16+3\left(-1+3^{2}\right)+4.1+2$$

Cyfrifo 3 i bŵer 2 a chael 9.

$$6.16+3\left(-1+9\right)+4.1+2$$

Adio -1 a 9 i gael 8.

$$6.16+3\times 8+4.1+2$$

Lluosi 3 a 8 i gael 24.

$$6.16+24+4.1+2$$

Adio 6.16 a 24 i gael 30.16.

$$30.16+4.1+2$$

Adio 30.16 a 4.1 i gael 34.26.

$$34.26+2$$

Adio 34.26 a 2 i gael 36.26.

$$36.26$$

Ffactor

$$\frac{37 \cdot 7 ^ {2}}{2 \cdot 5 ^ {2}} = 36\frac{13}{50} = 36.26$$