1. Square Rooting Equations Slideshow 19, Mathematics, Mr Richard Sasaki, Room 307

2. Objectives Recall how to square root a numberRecall how to square root a number Understanding order of operations and why we often square root lastUnderstanding order of operations and why we often square root last Solve equations where we need to square root and cube rootSolve equations where we need to square root and cube root

3. Square Rooting When we square root a number, we get two solutions (unless we square root zero).

4. Square Unknowns Example We must square root both sides.

5. Cubic Unknowns Example We must cube root both sides.

6. Answers - Easy

7. Answers - Hard

8. Order of Operations As hopefully most of you have realized. We apply the order of operations in reverse to solve equations! This means we deal with powers last (except when we have brackets). Example You should keep a neat layout!

9. Answers - Easy

10. Answers – Hard (Top)

11. Answers – Hard (Bottom) Only odd number powers can produce negative results.