[(-3+7)*2-5*(-4+8)]*(4-9)= eching

$$[ ( - 3 + 7 ) \cdot 2 - 5 \cdot ( - 4 + 8 ) ] \cdot ( 4 - 9 ) =$$

Baholash

$$60$$

Yechim qadamlari

4 olish uchun -3 va 7'ni qo'shing.

$$\left(4\times 2-5\left(-4+8\right)\right)\left(4-9\right)$$

8 hosil qilish uchun 4 va 2 ni ko'paytirish.

$$\left(8-5\left(-4+8\right)\right)\left(4-9\right)$$

4 olish uchun -4 va 8'ni qo'shing.

$$\left(8-5\times 4\right)\left(4-9\right)$$

20 hosil qilish uchun 5 va 4 ni ko'paytirish.

$$\left(8-20\right)\left(4-9\right)$$

-12 olish uchun 8 dan 20 ni ayirish.

$$-12\left(4-9\right)$$

-5 olish uchun 4 dan 9 ni ayirish.

$$-12\left(-5\right)$$

60 hosil qilish uchun -12 va -5 ni ko'paytirish.

$$60$$

Omil

$$2^{2}\times 3\times 5$$