Answer:
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.
