What is the quotient of 6x-15 over 3x(squared) +31x + 10 and 2x+1 over 2x(squared) + 15x - 50?
2007-11-02 18:59:28 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
In dividing fractions, first get the reciprocal of the divisor, then proceed to multiplication:
6x - 15......................2x^2 + 15x - 50
----------------------X---------------------------
3x^2 +31x + 10...........2x+1
Factor out, so you can find out which ones you can cancel out:
3(2x - 5)................(x +10) (2x - 5)
------------------X----------------------------
(x + 10) (3x + 1)........2x + 1
3(2x - 5) (2x - 5)
--------------------------
(3x + 1) (2x + 1)
2007-11-02 19:25:14 · answer #1 · answered by edith p 3 · 0⤊ 0⤋
(6x-15) / ( 3x^2+31x + 10)
=3(2x-5)/3(x+1/3)(x+10)
( 2x+1)/( 2x^2+ 15x - 50)
=(2x+1)/2(x-5/2)(x+10)
2007-11-03 02:17:49 · answer #2 · answered by iyiogrenci 6 · 0⤊ 0⤋
[(6x-15)/(3x²+31x+10)] / [(2x+1)/(2x²+15x-50)]
[(3)(2x-5)/(3x+1)(x+10)] / [(2x+1)/((2x-5)(x+10)]
cancel (x+10) then cross multiply
= 3(2x-5)²/(3x+1)(2x+1)
2007-11-03 02:21:40 · answer #3 · answered by cedric 3 · 0⤊ 0⤋
get the commom denominator and add them up.
2007-11-03 02:09:02 · answer #4 · answered by Anonymous · 0⤊ 0⤋