Solve 8[21div7*15+48div-12-3(25-4)]

$$8 [ 21 \div 7 \cdot 15 + 48 \div - 12 - 3 ( 25 - 4 ) ]$$

Evaluate

$$-176$$

Solution Steps

Divide 21 by 7 to get 3.

$$8\left(3\times 15+\frac{48}{-12}-3\left(25-4\right)\right)$$

Multiply 3 and 15 to get 45.

$$8\left(45+\frac{48}{-12}-3\left(25-4\right)\right)$$

Divide 48 by -12 to get -4.

$$8\left(45-4-3\left(25-4\right)\right)$$

Subtract 4 from 45 to get 41.

$$8\left(41-3\left(25-4\right)\right)$$

Subtract 4 from 25 to get 21.

$$8\left(41-3\times 21\right)$$

Multiply 3 and 21 to get 63.

$$8\left(41-63\right)$$

Subtract 63 from 41 to get -22.

$$8\left(-22\right)$$

Multiply 8 and -22 to get -176.

$$-176$$

Factor

$$-176$$