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:Yes, the quadratic equation is ax^2 + bx + c = 0. The quadratic function is y = ax^2 + bx + c or f(x) = ax^2 + bx + c. I think the article has blended the two a little [[User:TheGuy|TheGuy]] 17:31, 10 November 2007 (EST)
:Yes, the quadratic equation is ax^2 + bx + c = 0. The quadratic function is y = ax^2 + bx + c or f(x) = ax^2 + bx + c. I think the article has blended the two a little [[User:TheGuy|TheGuy]] 17:31, 10 November 2007 (EST)
In high school, I used to do these all the time. When I look at them today, I don't know where to start on paper. However, when I became a business owner, I found I was doing them all the time in my head, even when I was talking with other people. [[User:RobSmith|RobS]]<sup>[[User talk:RobSmith|Recovering Republican]]</sup> 15:50, January 1, 2026 (EST)