Simplifying negative radicands

Presentation

•

Mathematics

•

9th - 12th Grade

•

Medium

Karine Ptak

Used 3+ times

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9 Slides • 5 Questions

Simplifying negative radicands

by Karine Ptak

Let's do it again...

Yesterday, you solved quadratic equations in vertex form or in standard form with b=0

Open Ended

For which x-values does the previous equation hold true?

Type response here

We need the help of a new type of number

Here's how it works...

Fill in the Blanks

You try! $\sqrt[]{-25}$ simplifies as

Type answer...

Multiple Choice

$\sqrt[]{-28}$

$i\sqrt[]{28}$

$-2\sqrt[]{7}$

$2i\sqrt[]{7}$

$4i\sqrt[]{7}$

You will encounter these imaginary units while solving equations such as...

Let's solve one as an example...

Multiple Choice

Time to put things together!

What are the solutions to $x^2+16=0$

$-4$

$4$

$\pm4$

$\pm4i$

Multiple Choice

Time to put things together!

What are the solutions to $\left(x+3\right)^2+16=0$

$-7$

$1$

$-3\pm4$

$-3\pm4i$

Need another example?

Check out the videos on the right for additional instructions. Or, come see me!

Your practice is on ALEKS: Simplify negative radicands.

Simplifying negative radicands

by Karine Ptak

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