Enter a problem...

Pre-Algebra Examples

Popular Problems

Evaluate -(-30)

$- (- 30)$

Step 1

Multiply $- 1$ by $- 30$ .

$30$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$

Please ensure that your password is at least 8 characters and contains each of the following:

a number
a letter
a special character: @$#!%*?&