algebra Math problem?
I dont know if any of you will take the time to figure it out but everytime i do it, its wrong
6n^2-87n+180
____________
(n-12) x (n+15)
A:6n-15
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n-12
B: 6n-15
--------
n+15
C: n-12
------
n+15
n-15
-------
n+15
Update:please help!! im getting so stressed out
Comments
6n^2 - 87n + 180
3 ( 2n^2 - 29n +60)
COEFF of n^2 = +2
( + 2) ( +60) = +120
FIND FACTORS OF +120 which add up to -29 ( COEFF of n)
( -24 ) ( -5) = +120
3 ( 2n^2 -24n -5n +60)
3 ( 2n (n -12) -5( n -12) )
3 ( 2n -5) ( n -12)
3 ( 2n -5) ( n -12)
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(n-12) x (n+15)
ANSWER is B = (6n -15) / ( n + 15)
(6n^2 - 87n + 180) / [(n - 12)(n + 15)]
[(6n - 15)(n - 12)] / [(n - 12)(n + 15)]
(6n - 15) / (n + 15)
=(6n-15)(n-12)/[(n-12)(n+15)]
=(6n-15)/(n+15)