1963 AHSME Problems/Problem 4
Problem
For what value(s) of does the pair of equations and have two identical solutions?
Solution
If the system of equations has two identical solutions, then only one pair will satisfy both equations.
Substitute in one equation into another equation. Complete the square to get In order for the equation to have one solution, the right side must be , so , which is answer choice .
See Also
1963 AHSC (Problems • Answer Key • Resources) | ||
Preceded by Problem 3 |
Followed by Problem 5 | |
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