Quadratic Roots
1. The given expression is a quadratic polynomial: $x^2+3x-3$.
2. To understand it better, we can find its roots by solving $x^2+3x-3=0$ using the quadratic formula:
$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ where $a=1$, $b=3$, and $c=-3$.
3. Calculate the discriminant:
$$\Delta=b^2-4ac=3^2-4(1)(-3)=9+12=21$$
4. Find roots:
$$x=\frac{-3\pm\sqrt{21}}{2}$$
5. Therefore, the polynomial factors as:
$$x^2+3x-3=\left(x-\frac{-3+\sqrt{21}}{2}\right)\left(x-\frac{-3-\sqrt{21}}{2}\right)$$
This shows the roots and factorization of the quadratic expression clearly.