9514 1404 393
Explanation:
The standard form of a quadratic function and the formula for finding its zeros are shown here:
[tex]f(x)=ax^2+bx+c \qquad\text{standard form of a quadratic function}\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a} \qquad\text{formula for finding $x$ such that $f(x)=0$}[/tex]
