Math Problem Statement
이차방정식 x^2+2axy+y^2+2(a^2+1)x-1=0 이 두 직선을 나타낼 때, 모든 상수 a의 값의 곱을 구하시오
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Equations
Factoring
Discriminant
Formulas
Quadratic equation: Ax^2 + Bxy + Cy^2 + Dx + Ey + F = 0
Discriminant: B^2 - 4AC = 0
Theorems
Condition for a quadratic equation to represent two straight lines (Discriminant theorem)
Suitable Grade Level
High School (Grades 10-12)
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