Exponents

Q. what are laws os exponents for real numbers?

Q. If $n$ is a positive integer and $n\in [5,100]$, then the number of integral roots of the equation $x^2+2x-n=0$ are:

1. $4$
2. $16$
3. $10$
4. $8$

Q. If $5^{m+2}$ $\times$ $5^4$ = $5^3$ , then $m$ =

1. -3

Q.

Express the given expression in the power notation and also find their value.

$(-2)\times (-2)\times (-2)\times (-4)\times (-4)$

Q. Why did Shylock refuse the money offered by Bassanio?