Question

X + 4 per x²-9 - 2per x+3=...
(tolong dijawab ya teman-teman:))

Answer 1

Verified answer

Hai kak...aku bantu ya

(x-4/x²-9 ) - ( 2/x-3 ) =

( x-4/(x+3)(x-3) ) - (2/x-3) =

Kita samakan penyebutnya menjadi (x+3)(x-3)

( x-4/(x+3)(x-3) ) - ( 2(x+3)/(x+3)(x-3) ) =

( x-4/(x+3)(x-3) ) - ( 2x+6/(x+3)(x-3) ) =

(x-4) - (2x+6)
------------------ =
(x+3) ( x-3 )


x-4-2x-6
------------------ =
(x+3) ( x-3 )


-x + 10
---------
x² - 9

Atau juga bisa ditulis

10 - x
---------
x² - 9


Semoga bermanfaat