Given:
x intercepts of a quadratic equation are 3 and 4.
The objective is to find the quadratic equation.
The x intercepts can be written as,
[tex]\begin{gathered} x=3 \\ x-3=0 \end{gathered}[/tex]Similarly,
[tex]\begin{gathered} x=4 \\ x-4=0 \end{gathered}[/tex]Now, multiply both the term to get the quadratic equation.
[tex]\begin{gathered} (x-3)(x-4)=0 \\ x^2-3x-4x+12=0 \\ x^2-7x+12=0 \end{gathered}[/tex]Hence, the required quadratic equation is obtained.