204k views
3 votes
What is x squared equals one twenty one

2 Answers

5 votes
X=11,-11 is the answer
User Max Meijer
by
8.4k points
3 votes

Answer:

x = 11

Explanation:

x² = 121

You are solving for the variable, x. Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Root both sides:

√(x²) = √(121)

x = √121 = √(11 * 11)

x = 11

x = 11 is your answer.

~

User BlueZed
by
9.1k points