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Kyra solved the following quadratic equation. What was the error, if any, that she made?

Step 1: 2x2 – 33 = 39
Step 2: 2x2 = 72
Step 3: x2 = 36
Step 4: x = 6

User Punkouter
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1 Answer

6 votes
see the picture below
Kyra solved the following quadratic equation. What was the error, if any, that she-example-1
User Anders Westrup
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