Solve 3*[-5*((-4:2)+7)*(-1)]*2?

$$3 \cdot [ - 5 \cdot ( ( - 4 : 2 ) + 7 ) \cdot ( - 1 ) ] \cdot 2 ?$$

Evaluate

$$150$$

Solution Steps

Multiply 3 and -5 to get -15.

$$-15\left(\frac{-4}{2}+7\right)\left(-1\right)\times 2$$

Divide -4 by 2 to get -2.

$$-15\left(-2+7\right)\left(-1\right)\times 2$$

Add -2 and 7 to get 5.

$$-15\times 5\left(-1\right)\times 2$$

Multiply -15 and 5 to get -75.

$$-75\left(-1\right)\times 2$$

Multiply -75 and -1 to get 75.

$$75\times 2$$

Multiply 75 and 2 to get 150.

$$150$$

Factor

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