Quadratic Formula Lesson Slides: 3 Slides

3 Slides • 6 Questions

1

Quadratic Formula

I can solve quadratic equations by completing the square.
I can solve quadratic equations by using the quadratic formula.

2

https://youtu.be/PJQpNPIDsV0

3

Multiple Select

I can solve quadratic equations by completing the square.

$x^2-2x-80=0$

1

$x=-8$

2

$x=10$

3

$x=8$

4

$x=2$

4

Multiple Choice

I can solve quadratic equations by completing the square.

$x^2-18x+67=0$

1

$x=\pm\sqrt{23}$

2

$x=23$

3

$x=9\pm\sqrt{14}$

4

$x=3\pm\sqrt{14}$

5

6

Multiple Choice

I can solve quadratic equations by using the quadratic formula.

What is the quadratic formula?

1

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

2

$x=\sqrt{b^2-4ab}$

3

$-b\pm\frac{\sqrt{b^2-4ac}}{2a}$

7

Multiple Select

I can solve quadratic equations by using the quadratic formula.

$10x^2-23x+6=0$

1

$x=2$

2

$x=-\frac{3}{2}$

3

$x=\frac{3}{10}$

4

$x=\frac{3}{2}$

8

Multiple Choice

I can solve quadratic equations by using the quadratic formula.

$x^2-12x+12=0$

1

$x=\pm\sqrt{6}$

2

$x=6\pm2\sqrt{6}$

3

$x=12\pm4\sqrt{6}$

9

Multiple Choice

I can solve quadratic equations by using the quadratic formula.

$3x^2+x-7=0$

1

$x=1\pm\sqrt{28}$

2

$x=\frac{1\pm\sqrt{-83}}{6}$

3

$x=\frac{-1\pm\sqrt{85}}{6}$

Quadratic Formula

I can solve quadratic equations by completing the square.
I can solve quadratic equations by using the quadratic formula.

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