Question

calindo algebra 1b
name:
date:
bell:
perfect squares & cubes
find the following square and cube roots.

1. $sqrt{144}$ =
2. $sqrt{16}$ =
3. $sqrt{289}$ =
4. $sqrt{\frac{4}{81}}$ =
5. $sqrt{25}$ =
6. $sqrt{400}$ =
7. $sqrt3{27}$ =
8. $sqrt3{-8}$ =
9. $sqrt3{216}$ =
10. $sqrt3{343}$ =
11. $sqrt3{-1000}$ =
12. $sqrt3{1}$ =

Explanation:

Step1: Find square root of 144

$\sqrt{144} = 12$

Step2: Find square root of 16

$\sqrt{16} = 4$

Step3: Find square root of 289

$\sqrt{289} = 17$

Step4: Find square root of $\frac{4}{81}$

$\sqrt{\frac{4}{81}} = \frac{\sqrt{4}}{\sqrt{81}} = \frac{2}{9}$

Step5: Find square root of 25

$\sqrt{25} = 5$

Step6: Find square root of 400

$\sqrt{400} = 20$

Step7: Find cube root of 27

$\sqrt[3]{27} = 3$

Step8: Find cube root of -8

$\sqrt[3]{-8} = -2$

Step9: Find cube root of 216

$\sqrt[3]{216} = 6$

Step10: Find cube root of 343

$\sqrt[3]{343} = 7$

Step11: Find cube root of -1000

$\sqrt[3]{-1000} = -10$

Step12: Find cube root of 1

$\sqrt[3]{1} = 1$

Answer:

1. $12$
2. $4$
3. $17$
4. $\frac{2}{9}$
5. $5$
6. $20$
7. $3$
8. $-2$
9. $6$
10. $7$
11. $-10$
12. $1$