Issolvi {left(61/2right)}^3-21^2/4-1

$${ \left(6 \frac{ 1 }{ 2 } \right) }^{ 3 } -2 \frac{ { 1 }^{ 2 } }{ 4 } -1$$

Evalwa

$$\frac{2185}{8}=273.125$$

Passi tas-Soluzzjonijiet

Immultiplika 6 u 2 biex tikseb 12.

$$\left(\frac{12+1}{2}\right)^{3}-2\times \frac{1^{2}}{4}-1$$

Żid 12 u 1 biex tikseb 13.

$$\left(\frac{13}{2}\right)^{3}-2\times \frac{1^{2}}{4}-1$$

Ikkalkula \frac{13}{2} bil-power ta' 3 u tikseb \frac{2197}{8}.

$$\frac{2197}{8}-2\times \frac{1^{2}}{4}-1$$

Ikkalkula 1 bil-power ta' 2 u tikseb 1.

$$\frac{2197}{8}-2\times \frac{1}{4}-1$$

Immultiplika 2 u \frac{1}{4} biex tikseb \frac{1}{2}.

$$\frac{2197}{8}-\frac{1}{2}-1$$

Naqqas \frac{1}{2} minn \frac{2197}{8} biex tikseb \frac{2193}{8}.

$$\frac{2193}{8}-1$$

Naqqas 1 minn \frac{2193}{8} biex tikseb \frac{2185}{8}.

$$\frac{2185}{8}$$

Fattur

$$\frac{5 \cdot 19 \cdot 23}{2 ^ {3}} = 273\frac{1}{8} = 273.125$$