Sunday, 12 November 2017

algebra precalculus - Why is the quadratic equation ax2+bx+c=0?



Shouldn't it be y=ax2+bx+c? According to Wikipedia, it is ax2+bx+c=0.



I guess that they are both equations, right?


Answer



They are both equations that involve quadratics, but the usual meaning of "quadratic equation" is that it has only one variable, while y=ax2+bx+c has two variables (x and y).



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