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Answers
Completing the square
Exercise 1
1. (x + 2)² - 4
2. (x + 5)² - 25
3. (x - 2)² - 4
4. (x + 1)² - 1
5. (x + 3)² - 9
6. (x + 7)² - 49
7. (x - 3)² - 9
8. (x + 10)² - 100
9. (x + 8)² - 64
10.(x + 6)² - 36
Exercise 3
1. x = -4 ± √19
2. x = -3 ± √4
3. x = -2 ± √11
4. x = 2.5 ± √11.25
5. x = -7 ± √50
6. x = -5 ± √32
7. x = 6 ± √39
8. x = -1 ± √6
9. x = -8 ± √67
10.x = 10 ± √103
Exercise 1
1. (x + 2)² - 3
2. (x + 5)² - 30
3. (x - 2)² - 1
4. (x + 4)² - 9
5. (x + 1)² - 7
6. (x + 7)² - 55
7. (x - 3)² - 13
8. (x + 10)² - 95
9. (x + 9)² - 89
10.(x + 6)² - 47
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