Solve 2*3*4-3*4*5-1*2*9

$$2 \cdot 3 \cdot 4 - 3 \cdot 4 \cdot 5 - 1 \cdot 2 \cdot 9$$

Evaluate

$$-54$$

Solution Steps

Multiply 2 and 3 to get 6.

$$6\times 4-3\times 4\times 5-1\times 2\times 9$$

Multiply 6 and 4 to get 24.

$$24-3\times 4\times 5-1\times 2\times 9$$

Multiply 3 and 4 to get 12.

$$24-12\times 5-1\times 2\times 9$$

Multiply 12 and 5 to get 60.

$$24-60-1\times 2\times 9$$

Subtract 60 from 24 to get -36.

$$-36-1\times 2\times 9$$

Multiply 1 and 2 to get 2.

$$-36-2\times 9$$

Multiply 2 and 9 to get 18.

$$-36-18$$

Subtract 18 from -36 to get -54.

$$-54$$

Factor

$$-54$$