Solve by Square Roots Lesson Slides: 4 Slides

4 Slides • 9 Questions

1

Solve by Square Roots

2

This is the only method that doesn't start with standard form.

Start by isolating the x²
Add/Subtract and then multiply/divide

3

4

Multiple Choice

Solve for $x^2$
$2x^2-9=17$

1

$x^2=26$

2

$x^2=13$

3

$x^2=24$

4

$x^2=11$

5

After you solve for x²

Square root both sides of the equation
Remember to split into positive and negative

6

Fill in the Blanks

$2x^2=50$

Solve for x, answer with a comma between your answers. x =

Type answer...

7

Multiple Choice

Trivia Break: Which of these constellations is not in the Zodiac

1

Leo

2

Orion

3

Gemini

4

Aries

8

Multiple Choice

Solve for x

$3x^2-8=40$

1

$x=5,\ x=-5$

2

$x=4,\ x=-4$

3

$x=8,\ x=-8$

4

$x=16,\ x=-16$

9

Open Ended

What questions do you have about solving using square roots?

Type response here

10

Multiple Choice

$7x^2+14=7$

Solve for x

1

x = 1, -1

2

x = 2, -2

3

No Solutions

4

x=0

11

Multiple Choice

Trivia Break: How many light years is it across the Milky Way?

1

1000

2

10,000

3

100,00

4

1,000,000

12

Poll

How are you feeling about solving using square roots to solve quadratics?

Totally got it

I think I have it

I'm shaky, but getting there

Terrible

13

Multiple Choice

$8-3x^2=-16$

Solve for x

1

No Solutions

2

$x=\pm8$

3

$x=\pm2\sqrt{2}$

4

$x=\pm4\sqrt{2}$

Solve by Square Roots

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