2019 AMC 8 Problems/Problem 20
Contents
Problem 20
How many different real numbers satisfy the equation
Solution 1
We know that to get , you can square or . Thus, can have possibilities. is either or , leaving with possiblities and so .
Solution 2
The equation is a quartic, so there will be 4 solutions. By skimming the problem, none of the answers are "extranerous", so the answer is ~heeeeeeeeheeeee
See Also
2019 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 19 |
Followed by Problem 21 | |
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