Question

Help in subtracting rational expressions!

Answer 1

\[\large \frac{ p + 4 }{ 3p^2 + 5p - 28 } - \frac{ 6p }{ 3p }\]

Answer 2

first find the LCD of the 2 denominators

Answer 3

How can we do that will factoring?

Answer 4

just multiply the 2 together
though you can factor the first one i think

Answer 5

= (3p - 7)(p + 4)

Answer 6

so LCD is 3p(3p - 7)(p + 4)

Answer 7

oh I just realised the right fraction = 2!!

Answer 8

yes

Answer 9

- that simplifies it a lot!!!

Answer 10

lol

Answer 11

Sorry i need to eat lunch. i will come back you can keep on doing whatever you want for this problem .

Answer 12

so we have

(p + 4) - 2(p+4)(3p - 7)
--------------------
(3p - 7)(p + 4)

Answer 13

OK

so its now a matter of simplification

Answer 14

I'm sure you can finish this off