Perform the indicated operation? Help please?

0 ⤊

Perform the indicated operation? Help please?

Hi.
I'm kinda stumped in what I should do to be able to add these

[(5) / y-2] +[ (2) / y+2]

Thanks =]!

2007-08-26 10:45:55 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help

2 answers

5/(y-2) + 2/(y+2)
Get a common denominator.
= 5(y+2) / [(y-2)(y+2)] + 2(y-2) / [(y-2)(y+2)]
= (5y +10 +2y -4) / [(y-2)(y+2)]
= (7y +6) / [(y-2)(y+2)]

2007-08-26 10:51:34 · answer #1 · answered by MsMath 7 · 0⤊ 0⤋

Remember your addition of fraction, first find a common denominator.

= [5(y+2)/(y-2)(y+2)] + [2(y-2)/(y+2)(y-2)]

= (5y + 10 + 2y - 4)/((y+2)(y-2))

=(7y + 6)/((y+2)(y-2))

2007-08-26 10:58:43 · answer #2 · answered by norman 7 · 0⤊ 0⤋