Solve (-13)^2+sqrt{81}-3*sqrt{625}-(-3)^2

$$( - 13 ) ^ { 2 } + \sqrt { 81 } - 3 \cdot \sqrt { 625 } - ( - 3 ) ^ { 2 }$$

Evaluate

$$94$$

Solution Steps

Calculate -13 to the power of 2 and get 169.

$$169+\sqrt{81}-3\sqrt{625}-\left(-3\right)^{2}$$

Calculate the square root of 81 and get 9.

$$169+9-3\sqrt{625}-\left(-3\right)^{2}$$

Add 169 and 9 to get 178.

$$178-3\sqrt{625}-\left(-3\right)^{2}$$

Calculate the square root of 625 and get 25.

$$178-3\times 25-\left(-3\right)^{2}$$

Multiply -3 and 25 to get -75.

$$178-75-\left(-3\right)^{2}$$

Subtract 75 from 178 to get 103.

$$103-\left(-3\right)^{2}$$

Calculate -3 to the power of 2 and get 9.

$$103-9$$

Subtract 9 from 103 to get 94.

$$94$$

Factor

$$2\times 47$$