Mathematics
15 Online
OpenStudy (anonymous):
4. Multiply. give your answer in standard form.
(2n^2 - 7n + 2)(3n + 1) (1 point)
6n^3 - 23n62 - n +2
6n^3 - 19n^2 - n + 2
6n^3 - 19n^2 - 13n + 2
6n^3 + 23n^2 + 13n + 2
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
what do you think it is
OpenStudy (anonymous):
i have no idea @jagr2713
jagr2713 (jagr2713):
7-4=3
3+3=6
jagr2713 (jagr2713):
so 6n^3
jagr2713 (jagr2713):
7*3=21
21-2=19
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
6n^3-19n^2
jagr2713 (jagr2713):
so what can you eliminate
OpenStudy (anonymous):
the frist one n last one
jagr2713 (jagr2713):
ok so its leaves b and c so
OpenStudy (anonymous):
so what is it
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
what is 1
OpenStudy (anonymous):
1
jagr2713 (jagr2713):
x=1 so whats the answer
OpenStudy (anonymous):
b?
jagr2713 (jagr2713):
Yes nice
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok kool thanx
jagr2713 (jagr2713):
any other questions like that? and you're welcome
OpenStudy (anonymous):
the area of a rectangle painting is given by the trrinomial x^2+2x-15. What are the possible dimentions? use factoring.
jagr2713 (jagr2713):
answer choice??
OpenStudy (anonymous):
(x+5) and (x-3)
(x+5) and (x+3)
(x-5) and (x-3)
(x+5)and (x+3)
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
x^2+2x=3x
15/3=5
so its
(x+5) right
jagr2713 (jagr2713):
so what can you eliminate
OpenStudy (anonymous):
the last two the last one is supposed to be (x-5)
jagr2713 (jagr2713):
what?
OpenStudy (anonymous):
its either the first one or the second
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
x^2 +2=3
b/c it has - what would the answer be
OpenStudy (anonymous):
b?
jagr2713 (jagr2713):
Nice again
OpenStudy (anonymous):
kool
jagr2713 (jagr2713):
wait no no its not
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
hint it has -
jagr2713 (jagr2713):
so the answer is A
OpenStudy (anonymous):
ok thanx
jagr2713 (jagr2713):
and where are they unanswered questions
OpenStudy (anonymous):
alot bc its a 41 question thing that i have no idea how to do so yea...
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
ok i can help with a few more
OpenStudy (anonymous):
ok (6x^3-1x^2+1) / (2x +1)
jagr2713 (jagr2713):
answer choice
jagr2713 (jagr2713):
6x*2=12
x+x^3=4
12x^4
jagr2713 (jagr2713):
thats the first one
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
-3x^2+2x-1
3x^2 -2x+1
-3x^2+2x-1
3x^3+2x-1
jagr2713 (jagr2713):
oh ok wait
jagr2713 (jagr2713):
can you send pic of the question please
OpenStudy (anonymous):
not really
jagr2713 (jagr2713):
its this
(6x^3-1x^2+1) / (2x +1)
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yep
jagr2713 (jagr2713):
ohoho its divide ok lets do this
jagr2713 (jagr2713):
6-2-1=3x^2 right
so what can you eliminate
OpenStudy (anonymous):
a n c
jagr2713 (jagr2713):
ok
6-2-2-1=2x
so whats the answer
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
hint: positive 2x
OpenStudy (anonymous):
d?
jagr2713 (jagr2713):
opps sorry i am messing up
i mean negitive 2x so its B
OpenStudy (anonymous):
ok
jagr2713 (jagr2713):
:D i love doing these
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ewwww i hate algebra
jagr2713 (jagr2713):
any more questions
OpenStudy (anonymous):
y= x^2 +5x -9
y=2x+1
(2,-9) n (-5,5)
(2,5) n (-5,-5)
(2,5) n (-5,-9)
no solution
jagr2713 (jagr2713):
i hate these ones but ok
jagr2713 (jagr2713):
Its c
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok nice thanks
jagr2713 (jagr2713):
what are you on flvs
OpenStudy (anonymous):
ummm no whats that
jagr2713 (jagr2713):
oh forget it and any more
OpenStudy (anonymous):
no
Join the QuestionCove community and study together with friends!
Sign Up
jagr2713 (jagr2713):
Ok it was nice answering your questions
OpenStudy (anonymous):
thanx for answering them
jagr2713 (jagr2713):
you're welcome