(r+2)/(r^2+6r-7)=8/(r^2+3r-4)

Simple and best practice solution for (r+2)/(r^2+6r-7)=8/(r^2+3r-4) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (r+2)/(r^2+6r-7)=8/(r^2+3r-4) equation:


D( r )

r^2+6*r-7 = 0

r^2+3*r-4 = 0

r^2+6*r-7 = 0

r^2+6*r-7 = 0

r^2+6*r-7 = 0

DELTA = 6^2-(-7*1*4)

DELTA = 64

DELTA > 0

r = (64^(1/2)-6)/(1*2) or r = (-64^(1/2)-6)/(1*2)

r = 1 or r = -7

r^2+3*r-4 = 0

r^2+3*r-4 = 0

r^2+3*r-4 = 0

DELTA = 3^2-(-4*1*4)

DELTA = 25

DELTA > 0

r = (25^(1/2)-3)/(1*2) or r = (-25^(1/2)-3)/(1*2)

r = 1 or r = -4

r in (-oo:-7) U (-7:-4) U (-4:1) U (1:+oo)

(r+2)/(r^2+6*r-7) = 8/(r^2+3*r-4) // - 8/(r^2+3*r-4)

(r+2)/(r^2+6*r-7)-(8/(r^2+3*r-4)) = 0

(r+2)/(r^2+6*r-7)-8*(r^2+3*r-4)^-1 = 0

(r+2)/(r^2+6*r-7)-8/(r^2+3*r-4) = 0

r^2+6*r-7 = 0

r^2+6*r-7 = 0

r^2+6*r-7 = 0

DELTA = 6^2-(-7*1*4)

DELTA = 64

DELTA > 0

r = (64^(1/2)-6)/(1*2) or r = (-64^(1/2)-6)/(1*2)

r = 1 or r = -7

(r+7)*(r-1) = 0

r^2+3*r-4 = 0

r^2+3*r-4 = 0

r^2+3*r-4 = 0

DELTA = 3^2-(-4*1*4)

DELTA = 25

DELTA > 0

r = (25^(1/2)-3)/(1*2) or r = (-25^(1/2)-3)/(1*2)

r = 1 or r = -4

(r+4)*(r-1) = 0

(r+2)/((r+7)*(r-1))-8/((r+4)*(r-1)) = 0

((r+2)*(r+4))/((r+7)*(r-1)*(r+4))+(-8*(r+7))/((r+7)*(r-1)*(r+4)) = 0

(r+2)*(r+4)-8*(r+7) = 0

r^2-2*r-48 = 0

r^2-2*r-48 = 0

r^2-2*r-48 = 0

DELTA = (-2)^2-(-48*1*4)

DELTA = 196

DELTA > 0

r = (196^(1/2)+2)/(1*2) or r = (2-196^(1/2))/(1*2)

r = 8 or r = -6

(r+6)*(r-8) = 0

((r+6)*(r-8))/((r+7)*(r-1)*(r+4)) = 0

((r+6)*(r-8))/((r+7)*(r-1)*(r+4)) = 0 // * (r+7)*(r-1)*(r+4)

(r+6)*(r-8) = 0

( r+6 )

r+6 = 0 // - 6

r = -6

( r-8 )

r-8 = 0 // + 8

r = 8

r in { -6, 8 }

See similar equations:

| 2x^3+8x^2-7x+10=0 | | c=2-100+30 | | f(x)=2x^3+8x^2-7x+10 | | y=2x^3+8x^2-7x+10 | | 4x+11=3x+7 | | 10000x^2+1.2x-0.3=0 | | 12x^2+14x=33 | | x+(x+y)i=3+8i | | 16x^4-100x^3+200x^2-175x+49=0 | | n-11*8=64 | | 5=3(4-b)+3 | | 4(x+3)=6x-14 | | 3-5x+2=11 | | 5k^2+5k-5=0 | | 24+2x= | | 2y=3x-14 | | n*7=136 | | 2x+54-x=75-7x | | n-14=28 | | p^2+9p+9=13 | | n+87=101 | | (5n^3+3n+6)-(18n^3+9)=0 | | 4x=10+10 | | (5n^3+3n+6)+(18n^3+9)=0 | | 2/5x5 | | 3(4-x)=40 | | 7x-y=-7graph | | 4cos^2(x)-3cosx-1=0 | | 2/3x+3/4=7/8 | | 3(4-x)=30 | | -19x+17y=3 | | k^2-16h^2= |

Equations solver categories