Whats four times the root of 81

36

Step-by-step explanation:

First, let's figure out the equation.

4 x √81

Next, figure out the square root of 81.

To find the root of 81, we have too find one number, that when multiplying itself, equals to 81. That number is 9. (9⋅9=81). Therefore √81=9.

Finally, create the final equation with the information and solve.

Our final equation would be 4 x 9, and that equals 36. Therefore ...

4 x √81 = 36.

36

Step-by-step explanation:

The root of 81 is 9 because 9 x 9 = 81

so 4 x 9 = 36