Mathematics
19 Online
OpenStudy (anonymous):
SOMEONE PLLLZZ HELP!!!!!!!!!
What is the simplified form of (3x/4x+8)/(7x/x^2-4x-12)
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
try to factor
OpenStudy (anonymous):
idk how to
OpenStudy (anonymous):
can you explain it to me
ganeshie8 (ganeshie8):
\(\large \frac{3x}{4x+8} \div \frac{7x}{x^2-4x-12}\)
ganeshie8 (ganeshie8):
its like that, eh ?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes only there isnt a divides sign its like 1 big fraction
ganeshie8 (ganeshie8):
\(\large \frac{\frac{3x}{4x+8} }{\frac{7x}{x^2-4x-12}}\)
ganeshie8 (ganeshie8):
like this ?
OpenStudy (anonymous):
yes
ganeshie8 (ganeshie8):
the bottom fraction, you can flip, and write it as multiplication :-
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
i dont have much time so if you can help me out fast that would be great
OpenStudy (anonymous):
ok then what
ganeshie8 (ganeshie8):
\(\large \frac{3x}{4x+8} \times \frac{x^2-4x-12}{7x}\)
ganeshie8 (ganeshie8):
then you factor right top, and see if things get cancel out
OpenStudy (anonymous):
ok does anything cancle out?
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
factor it and see
ganeshie8 (ganeshie8):
if you dont knw how to factor, you cannot solve this in rush
OpenStudy (anonymous):
well i sort of know how to factor this stuff just confunses me so would it be
ganeshie8 (ganeshie8):
good then :) give it a try
ganeshie8 (ganeshie8):
factor \(x^2-4x-12\) first
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
|dw:1372101486036:dw|
ganeshie8 (ganeshie8):
almost !
OpenStudy (anonymous):
what did it do wrong
ganeshie8 (ganeshie8):
|dw:1372101595531:dw|
ganeshie8 (ganeshie8):
next, factor bottom \(4x+ 8\)
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
you can pull out 4
ganeshie8 (ganeshie8):
\(4x+8 = 4(x+2)\)
OpenStudy (anonymous):
:/ i got that but i remember doing something else and i had to switch the signs, ok so i dont switch the sighns
ganeshie8 (ganeshie8):
ha
OpenStudy (anonymous):
i dont know how i would factr the denominator
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
just take out 4
ganeshie8 (ganeshie8):
|dw:1372101762679:dw|
ganeshie8 (ganeshie8):
|dw:1372101775533:dw|
OpenStudy (anonymous):
ok so 8x+8
ganeshie8 (ganeshie8):
cancel (x+2) and see wat u get
Join the QuestionCove community and study together with friends!
Sign Up
ganeshie8 (ganeshie8):
|dw:1372101820442:dw|
OpenStudy (anonymous):
ok so 3x(x-6)/7x
ganeshie8 (ganeshie8):
you forgot 4
ganeshie8 (ganeshie8):
3x(x-6)/4*7x
ganeshie8 (ganeshie8):
if you see, you can cancel out x also
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
/28x
ganeshie8 (ganeshie8):
|dw:1372101956989:dw|