Free Professional Development

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Author:
Rachel Kaplan

Objectives for this learning packet include

-Review the idea of a square root and what it means

-When given a quadratic equation where b=0, solve using square roots

With a handy lesson, become familiar with square roots and how to use them to solve some basic quadratic equations.

Tutorial

**Here's a handy table of perfect squares if you need an easy reference. Trust me though, soon you'll have many of these memorized!**

Try some of these out on your own, and scroll down when you're complete to view the final answers.

1. x^{2}+6 = 87

2. x^{2}-7 = 71

3. 9x^{2}+3 = 84

4. 5x^{2}+7 = 132

5. **Challenge: **x(x^{2}+4) = 40x

1. ±9

2. ±8

3. ±3

4. ±5

5. ±6