English example sentences with "quadratic"

A quadratic function cannot be used here.

Determine the range of values of the constant k to which the quadratic inequality x² + kx - 3k > 0 holds for any real value of x.

Quadratic equations have 2 roots.

Tom tried to understand the quadratic formula.

There is a straightforward formula for solving a quadratic equation.

A quadratic equation has two solutions.