Solve {r}{15*4-18*3+21*2-24*+30}{-4*4+18*3+14*2-14*-30}

$$\left. \begin{array} { r } { 15 \times 4 - 18 \times 3 + 21 \times 2 - 24 \times + 30 } \\ { - 4 \times 4 + 18 \times 3 + 14 \times 2 - 14 \times - 30 } \end{array} \right.$$

Evaluate

$$-186$$

Solution Steps

Multiply 18 and 3 to get 54. Multiply 14 and 2 to get 28.

$$15\times 4-18\times 3+21\times 2-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Multiply 15 and 4 to get 60.

$$60-18\times 3+21\times 2-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Multiply 18 and 3 to get 54.

$$60-54+21\times 2-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Subtract 54 from 60 to get 6.

$$6+21\times 2-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Multiply 21 and 2 to get 42.

$$6+42-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Add 6 and 42 to get 48.

$$48-24\times 30-4\times 4+54+28-14\left(-30\right)$$

Multiply 24 and 30 to get 720.

$$48-720-4\times 4+54+28-14\left(-30\right)$$

Subtract 720 from 48 to get -672.

$$-672-4\times 4+54+28-14\left(-30\right)$$

Multiply 4 and 4 to get 16.

$$-672-16+54+28-14\left(-30\right)$$

Subtract 16 from -672 to get -688.

$$-688+54+28-14\left(-30\right)$$

Add -688 and 54 to get -634.

$$-634+28-14\left(-30\right)$$

Add -634 and 28 to get -606.

$$-606-14\left(-30\right)$$

Multiply 14 and -30 to get -420.

$$-606-\left(-420\right)$$

The opposite of -420 is 420.

$$-606+420$$

Add -606 and 420 to get -186.

$$-186$$

Factor

$$-186$$