Extracting the root
Download as PPTX, PDF0 likes95 views
This document discusses how to take the square root of both sides of an equation to solve for x2 = d, with the solution being x = ±√d. It provides 5 examples of solving equations of this form, such as solving x2 - 4 = 0, x2 - 2 = 7, and (x - 2)2 = 25.
1 of 9
Download to read offline
Extracting the root
- 2. The process in solving x2 = d is referred to as taking the square root of both sides of the equation. If x2 = d, then x = ± 𝒅
- 3. Example 1. Solve the equation x2 – 4 = 0
- 4. Example 2. Solve for x if x2 – 2 =7
- 5. Example 3. Solve x2 + 2x – 1 = 2x
- 7. Example 4. Solve 25x2 = 49
- 8. Example 5. Solve (x – 2)2 = 25
- 9. THANK YOU!