If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( n )
5*n^2+6*n-8 = 0
5*n^2+6*n-8 = 0
5*n^2+6*n-8 = 0
5*n^2+6*n-8 = 0
DELTA = 6^2-(-8*4*5)
DELTA = 196
DELTA > 0
n = (196^(1/2)-6)/(2*5) or n = (-196^(1/2)-6)/(2*5)
n = 4/5 or n = -2
n in (-oo:-2) U (-2:4/5) U (4/5:+oo)
(12-(15*n))/(5*n^2+6*n-8) = 0
(12-15*n)/(5*n^2+6*n-8) = 0
5*n^2+6*n-8 = 0
5*n^2+6*n-8 = 0
DELTA = 6^2-(-8*4*5)
DELTA = 196
DELTA > 0
n = (196^(1/2)-6)/(2*5) or n = (-196^(1/2)-6)/(2*5)
n = 4/5 or n = -2
(n+2)*(n-4/5) = 0
(12-15*n)/((n+2)*(n-4/5)) = 0
12-15*n = 0 // - 12
-15*n = -12 // : -15
n = -12/(-15)
n = 4/5
n in { 4/5}
n belongs to the empty set
| k/3=-17 | | c-68=-121 | | ((x+7)/(x+3))=((x-2)/(x+1))+1 | | 6x-3=3-6x | | x/7-2=9/14 | | x-3=21.6 | | 4*2+1= | | 2x+16=y | | -18+x=10 | | 6+5y-1=8y+6-2y | | 2/-5*u=23 | | 550/1+4p=-9+2p | | 5a+7=4a-9 | | 2(y+2)-4=12 | | ((y-5)/(y-6))-1=((y-3)/(y-7)) | | 1/2b6=87 | | 4(4x-3)-6x=12-12-2x | | =p+p^2 | | 45y^2-60xy+20x^2=0 | | 3x-8=3x-5 | | 5/3x+1/3x=3x+40/3+5/3x | | 86+74=97+x | | x+22=38+55 | | 10*1000/3600 | | 21+x=40+4 | | -12=-2(3+3z) | | 10+15-?=21 | | u^2-3u=0 | | 10+15?=21 | | 3x+4=5+-10 | | 3(2-4x)/4-7=14 | | 8x-11=8x+8 |