State whether the given equation is quadratic or not. Give reason.
$\frac{5}{4} m^{2} - 7 = 0$ .

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Solution

Here variable term is $m$
$\frac{5}{4}$ $m^{2}$ $- 7$ $= 0$
$5 m^{2}$ $- 28 = 0$
It is a quadratic equation because power of variable is 2.

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