# Question #5a205

##### 2 Answers

#### Answer:

#### Explanation:

Start with:

subtract 1 from both sides:

Factor the left:

Find the zeros of the left:

Create a sign chart for these numbers by testing in the factored form:

++++ (-1) ----- (1) +++++

from the sign chart we can see that

If you're familiar with the graph of

#### Answer:

Solution set is (-1,1) or,

#### Explanation:

It is a quadratic inequality. Consider intervals

By assigning any value to x in the intervals (-1,0) and (0,1), the inequality is found to be valid.

At x=0 also the Inequality holds good.

Thus, inequality holds good in the interval (-1,1). The solution set is thus (-1,1) or