Question

What is quadratic inequality

Answer 1

It's inequality where you have the unknown with exponent 2 and no higher exponents.

For example:

`x^2-5x+3<0\\\\4x>5x^2+1\\\\4x^2-1\geqslant0\\\\5\leqslant-10x^2`

These are NOT quadratic inequalities:

`x^3-5x+3<0\\\\4x^2>5x^5+1\\\\4x^2-x^6\geqslant0\\\\5\leqslant-10x`

Answer 2

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Explanation:

quadratic equation is an equation of second degree that use an initially sign in stand of equal sign the solution of quadratic inquality always give the two root