Question

What are the solutions to the equation x2 = 81?

Answer 1

Square root to both sides .
\[\huge \sqrt{x^2}=\sqrt{81}\]

Answer 2

When you find the square root, you get both a positive and negative answer. Therefore,
x^2 = 81
x = √81
x = ±9

Answer 3

x=+-9

Answer 4

When you find the square root, you get both a positive and negative answer. Therefore,
x^2 = 81
x = √81
x = ±9

Answer 5

Thanks!

Answer 6

You're welcome! :)

Answer 7

x = 40.5 is my guess

Answer 8

@Sara13 dont forget to give a medal (by pressing best answer) to the people who gave you the answer that satisfied you the most ;) it's a sign of appreciation and respect ehre

Answer 9

the other side is 32