방정식(Equation)

• 선형방정식(Linear Equation)[고유주소]

• 이차방정식(Quadratic Equation)[고유주소]

• 삼차방정식(Cubic Equation)[고유주소]

• $f(x)=g(x)$ 꼴의 방정식을 그래프로 풀기(Solve the equation of $f(x)=g(x)$ as a graph)

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