Whakaoti i te -0.4(3*10*(-0.4+2*10)-10(4*(-0.4^2)-10

$$-0.4(3 \times 10 \times (-0.4+2 \times 10)-10(4 \times (- { 0.4 }^{ 2 } )-10$$

Aromātai

$$-277.76$$

Ngā Upane Otinga

Whakareatia te 3 ki te 10, ka 30.

$$-0.4\left(30\left(-0.4+2\times 10\right)-10\left(4\left(-0.4^{2}\right)-10\right)\right)$$

Whakareatia te 2 ki te 10, ka 20.

$$-0.4\left(30\left(-0.4+20\right)-10\left(4\left(-0.4^{2}\right)-10\right)\right)$$

Tāpirihia te -0.4 ki te 20, ka 19.6.

$$-0.4\left(30\times 19.6-10\left(4\left(-0.4^{2}\right)-10\right)\right)$$

Whakareatia te 30 ki te 19.6, ka 588.

$$-0.4\left(588-10\left(4\left(-0.4^{2}\right)-10\right)\right)$$

Tātaihia te 0.4 mā te pū o 2, kia riro ko 0.16.

$$-0.4\left(588-10\left(4\left(-0.16\right)-10\right)\right)$$

Whakareatia te 4 ki te -0.16, ka -0.64.

$$-0.4\left(588-10\left(-0.64-10\right)\right)$$

Tangohia te 10 i te -0.64, ka -10.64.

$$-0.4\left(588-10\left(-10.64\right)\right)$$

Whakareatia te 10 ki te -10.64, ka -106.4.

$$-0.4\left(588-\left(-106.4\right)\right)$$

Ko te tauaro o -106.4 ko 106.4.

$$-0.4\left(588+106.4\right)$$

Tāpirihia te 588 ki te 106.4, ka 694.4.

$$-0.4\times 694.4$$

Whakareatia te -0.4 ki te 694.4, ka -277.76.

$$-277.76$$

Tauwehe

$$-277.76$$