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Because when your solving a quadratic equation your looking for x-intercepts which is where why equals 0 and x equals what ever the answer is.

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Q: Why does y equals 0 when solving a quadratic equation?
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When solving a quadratic equation by factoring what method is used?

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Is x-27 equals 0 a quadratic equation?

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Is 5x-2y plus 10 equals 0 is a quadratic equation?

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How would you go about solving a quadratic equation?

Write the quadratic equation in the form ax2 + bx + c = 0 then the roots (solutions) of the equation are: [-b ± √(b2 - 4*a*c)]/(2*a)


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No. It is a quartic equation. The largest power of x in a quadratic equation must be 2.


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What is -2x squared plus 3x plus 5 equals 0?

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Is 5xy plus 2x plus 1 equals 0 a quadratic equation?

No.No.No.No.