Question

6 more than 3 times what number squares is 81

Answer 1

When you write that equation, you get 3x^2+6=81.

Solving for x:

Subtract by 6 on both sides of the equation to get 3x^2=75.

Then, divide by 3 on both sides of the equation to get x^2=25.

Finally, do the square root on both sides of the equation to get x=5.

The number is 5.