7A.15 Evaluating Square Roots & Cube Roots

13

-13

14

-14

8

-8

6

7

$$\pm7.5$$

$$\frac{6}{7}$$

$$\pm\frac{6}{7}$$

$$\frac{2}{3}$$

$$\pm\frac{5}{4}$$

$$\frac{5}{4}$$

$$\pm\frac{4}{5}$$

$$\frac{4}{5}$$

3

-3

9

-9

yes

no

Because the exponent is 2.

They don't. There is only 1 correct solution.

Because when you square a negative number the solution is positive, just like when you square a positive number.

because you have to think about absolute value.

Because every equation has just 1 correct solution.

They don't. Equations with exponents always have 2 solutions.

Because when you cube a negative number, you get a negative answer. But if you cube a positive number, the answer will be positive.

because you have to think about absolute value.

16 cubic inches

64 cubic inches

32 cubic inches

48 cubic inches