Question

how can you find the ? in "((3x^2+8x+4)/(2x+1))((2x^2+3x+1)/?)=3x+2"

Answer 1

put your unknown denominator to be y

Answer 2

then
y= ((3x^2+8x+4)/(2x+1))((2x^2+3x+1)/3x+2

Answer 3

and...

Answer 4

why did 3x+2 became the denominator??

Answer 5

y= (x+2)(x+1) after simplification

Answer 6

in an equation suppose 5x=3y, if you take something from the right hand side to the left hand side thn it changes its sign. in the example above if you take y to left hand side it changes to 5x/y=3

Answer 7

(3x^2+8x+4)= (3x+2)(x+2)
(2x^2+3x+1)= (2x+1)(x+1)

Answer 8

[(3x+2)(x+2)/(2x+1)][(2x+1)(x+1)/3x+2]=y

Answer 9

\[(\frac{(3x^2+8x+4)}{(2x+1)})(\frac{(2x^2+3x+1)}{?})=3x+2\]\[\frac{(3x+2)(x+2)}{(2x+1)} \times \frac{(2x+1)(x+1)}{?}=3x+2\]\[\frac{(3x+2)(x+2)}{(2x+1)} \times (2x+1)(x+1)=(3x+2) (?)\]\[\frac{\frac{(3x+2)(x+2)(2x+1)(x+1)}{(2x+1)}}{(3x+2)}=(?)\]\[? = \frac{(3x+2)(x+2)(2x+1)(x+1)}{(2x+1)(3x+2)}\] Now, cross out the common factors and get your answer!

Answer 10

did you understand?

Answer 11

sort of

Answer 12

k.. if you want further help i cud e-mail you some scanned texts to help you better understand

Answer 13

really??? my e-mail is viancarodolfo@yahoo.com

Answer 14

i will send you the texts after a around 3 hours or so.. is it k???

Answer 15

its wonderful,, im already failing math so this really helps me a lot

Answer 16

don't worry i will help u out as much i can

Answer 17

actuly i m doing my honors in mathematics.. so i wud b happy to help u

Answer 18

thanks so much in advance

Answer 19

you are welcome

Answer 20

SORRY NET WAS NOT WORKING

Answer 21

as soon as i finsh my writing, m scanning it to you