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1. 1
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$x^2-x-12=0$$
2. 2
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$2x^2-3x+1=0$$
3. 3
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. Express your answer as exact roots and as approximate roots to the nearest hundredth. $$x^2+5x+1=0$$
4. 4
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. Express your answer as exact roots and as approximate roots to the nearest hundredth. $$-5x^2-3x+1=0$$
5. 5
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. Express your answer as exact roots and as approximate roots to the nearest hundredth.(if necessary) $$2x^2+4x=3x^2-1$$
6. 6
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$4x^2=9x$$
7. 7
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$0.2x^2+0.8x=0.6$$
8. 8
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$(x-4)(x-1)=12$$
9. 9
The quadratic formula is: $$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$ Solve using the quadratic formula. $$(3x-1)(x-3)-(x-1)=(2x-5)(x+1)$$

$$e=mc^2$$