# Math!

Factoring Completely!

13b^2-13

I got
(13b-13)(1b-1).

On my test my teacher said it was party wrong.And she underlined the two Thirteen's i had in my answer.
And i don't understand why!?
_______________________________________
Also on another one.The problem is..
2d^2+3d-2

I got
(2d+2)(1d+1)

But she crossed out the numbers two and one, on my paper.And i don't understand Why?

Please if you could HELP ME!
i would be very greatful!
thanx

Factor completely means complete. You can factor 13 out...
13(b-1)(b+1)

if you multiply out what you put in parenthisis, it wont be equal to the original. Notice the - sign on the last term.
Try
(2d-1)(d+2)

what is any number to a negative power equal to?

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### Spanish 2

Explain the difference in meaning between these two sentences: 1. Alberto oyo la musica de la fiesta y salio de casa. 2. Alberto oia la musica de la fiesta cuando salio de casa. There are accents but I can't put them on here. I'm

2. ### Science

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half of the students in the class \$5.00 if they got an A on their next test. The other

3. ### Social Studies

Hi so i'm at connections academy. I was doing the feudal Europe unit test and wanted to ensure my grade is good. I'm asking you guys to check my work. (if you did the test, or are a teacher) i will put MY answers down below,

4. ### Government

I really need help please there are 4 questions 1) which function of political parties is also called the “watchdog function” Options: A) Campaign for candidates B) Monitor the party in power C) Nominate candidates for office

1. ### history

Q: The Progressive Party (or Bull Moose Party), created by former Republican president Theodore Roosevelt, was which type of third party? A: a. coalition party b. ideological party c. single-issue party d. splinter party

2. ### Science

A science teacher was curious to see whether offering money for good grades would increase student peformance on a test. The teacher offered half of the students in the class \$5.00 if they got an A on their next test. The other

3. ### VERY URGENT SCIENCE

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half the students in the class \$5.00 if they got an A on their next test. The other half

4. ### math

The graph of the equation 8x–5y=14 passes through a point with an abscissa of 1.2. Find the ordinate of the point. I got .8 repeating but my teacher said that it was wrong. I then got 9.6 and it was also wrong. what am I doing

1. ### Social Studies

The Free-Soil Party was a precursor to which political party? A.Know Nothing Party B.Whig Party C. Republican Party

2. ### math

After grading the most recent chapter test, a science teacher asks twelve of his 10th-grade summer school students how long they studied for the test. Their answers, as well as their corresponding test grades, were recorded on a