Question

Which expression is the partial fraction decomposition of  3x+7/ (x+2)^2

Answer 1

Can someone please help me ? :(

Answer 2

sure
you need to know it is going to look like
\[\frac{A}{x+2}+\frac{B}{(x+2)^2}\] first right?

Answer 3

is that part clear? if so then we can do it quickly

Answer 4

So would it be 3 over x+7 and x over x+2 ?

Answer 5

no
we need to find \(A\) and \(B\)

Answer 6

your denominator is
\[(x+2)^2\] right?

Answer 7

So it would just be A over x+7 ? and then B over x+2 ^2 ?

Answer 8

there is no \(x+7\) in it
as i said, it must look like \[\frac{A}{x+2}+\frac{B}{(x+2)^2}\]for some number A and B

Answer 9

hmmm do you know what "partial decomposition" is?

Answer 10

No. this online class im taking is honestly not teaching me anything

Answer 11

partial = split in two or more parts
fraction = well, an expression with numerator and denominator
decomposition = to decompose, or expand over

Answer 12

so.. what satellite73 is pointing out is that, you have a SUM RESULT,
and you're asked to produce 2 fractions that give that result

Answer 13

So the equation should look like the picture he posted. okay so after that how would i solve it ?

Answer 14

http://www.purplemath.com/modules/partfrac.htm <---- this should cover it I'd think

Answer 15

Im sorry but this isnt helping me . Im not understanding the way there explaining it

Answer 16

I got it : ) . I got the answer right thank you. Do you mind helping me on another question ?

Answer 17

sure.. just post anew... thus if I dunno, someone else may