Hi guys,(adsbygoogle = window.adsbygoogle || []).push({});

I'm really confused in finding the domain of quadratic equations.

For example: when finding a suitable domain so that an inverse exists, why is the domain of x^{2}-4 x>0

whilst,

the domain of 2x^{2}+3 is x≥0

Can the domain of x^{2}-4 be x≥0?

Furthermore, what is the largest domain and how do I know whether or not itisthe largest?

Thanks,

Thorn.

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# Domain of Quadratic Equations

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