Step-by-step Answer
PAGE: 145SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

The function is .

Let .

Therefore has real zeros at and .

Create a sign chart using these values.

Note : The solid circles denote that the values are included in the solution set.

Observe the sign chart :

The set of values of denoted in pink color represents the solution set. 

Determine whether is positive or negative on the test intervals.

Test intervals are and .

If , then .

If , then .

If , then .

The solutions of are values for which is negative or equal to .

The solution is .

The solution set of is .


"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!"

June Barnett

"Your site is amazing! It helped me get through Algebra."


"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful."

Dan Pease

Simply chose a support option

My status

JOIN US ON: is not affiliated with any Publisher, Book cover, Title, Author names appear for reference only