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What did the student do wrong?
- The student seemed to have taken the eight and square root it and it resulted in 2.8.
- He left x alone and ignored the square root of ten and added 2.8 which then would be 12.8.
- He did not properly follow the steps in order to complete the square.
What should have the student done instead?
- The student should have seen the step where you are supposed to factor, and from there square root to take take away the ^2.
- Then use +/- to have to answers.
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