Whakaoti i te 100left(15*25-45*15right)^2/30*70*40*60

$$\frac{ 100 { \left( 15 \cdot 25-45 \cdot 15 \right) }^{ 2 } }{ 30 \cdot 70 \cdot 40 \cdot 60 }$$

Aromātai

$$\frac{25}{14}\approx 1.785714286$$

Ngā Upane Otinga

Me whakakore tahi te 10\times 10 i te taurunga me te tauraro.

$$\frac{\left(15\times 25-15\times 45\right)^{2}}{3\times 7\times 40\times 60}$$

Whakareatia te 15 ki te 25, ka 375.

$$\frac{\left(375-15\times 45\right)^{2}}{3\times 7\times 40\times 60}$$

Whakareatia te 15 ki te 45, ka 675.

$$\frac{\left(375-675\right)^{2}}{3\times 7\times 40\times 60}$$

Tangohia te 675 i te 375, ka -300.

$$\frac{\left(-300\right)^{2}}{3\times 7\times 40\times 60}$$

Tātaihia te -300 mā te pū o 2, kia riro ko 90000.

$$\frac{90000}{3\times 7\times 40\times 60}$$

Whakareatia te 3 ki te 7, ka 21.

$$\frac{90000}{21\times 40\times 60}$$

Whakareatia te 21 ki te 40, ka 840.

$$\frac{90000}{840\times 60}$$

Whakareatia te 840 ki te 60, ka 50400.

$$\frac{90000}{50400}$$

Whakahekea te hautanga \frac{90000}{50400} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3600.

$$\frac{25}{14}$$

Tauwehe

$$\frac{5 ^ {2}}{2 \cdot 7} = 1\frac{11}{14} = 1.7857142857142858$$