Download presentation

Presentation is loading. Please wait.

Published byJerome Mitchell Adams Modified over 4 years ago

1
Using square roots to solve quadratic equations

2
2x² = 8 22 x² = 4 The opposite of squaring a number is taking its square root √ 4= ± 2

3
x² + 12 = 5 - 12 x² = - 7 The opposite of squaring a number is taking its square root √ -7 Can not answer because negative numbers do not have square roots there is no solution

4
4x² = 9 44 9494 The opposite of squaring a number is taking its square root √ = ± x² = 9494 3232 The solutions are 1½ and -1½

5
3x² - 11 = 7 + 11 3x² = 18 The opposite of squaring a number is taking its square root √ 6 33 x² = 6 = ± 2.45

6
2(x – 2)² = 18 22 (x – 2)² = 9 The opposite of squaring a number is taking its square root √ (x – 2)² = 9 x – 2 = ± 3 + 2 x = 2 ± 3 x = 2 + 3 2 - 3 The solutions are 5 and -1

7
Pages 655 – 656 4 – 46 even

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google