SOLUTION: 7x^2 = 21 Please help me solve.

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Question 224458: 7x^2 = 21 Please help me solve.
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
7x^2 = 21 Please help me solve.

Step 1. Divide 7 to both sides of the equation

7x%5E2%2F7=21%2F7

x%5E2=3

Step 2. Take the square root to both sides of the equation

x=sqrt%283%29 and x=-sqrt%283%29

Step 3. ANSWER: Solutions are sqrt%283%29 and -sqrt%283%29

I hope the above steps were helpful.

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Good luck in your studies!

Respectfully,
Dr J