1. The factors of $x^4-16$ are

2. If the number has three digits in the integral part, then its characteristic is

3. Napier's logarithm is also called

4. Any new equation obtained by raising both members of an equation to the same power may have solutions called

5. Two linear equations are said to be equivalent if they have exactly the same

6. When the variable in an equation occurs under a radical, the equation is said to be

7. If $x<0$, then $|x|$ is equal to

8. If $x>0$, then $|x|$ is equal to

9. If $a = 4, a_{n} = 110, d=2$ then the value of n should be

10. $\sqrt{6} + \sqrt{2}$ is an example of