2x^2-6x/7x-21

Simple and best practice solution for 2x^2-6x/7x-21 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 2x^2-6x/7x-21 equation: 


x in (-oo:+oo)

2*x^2-(((6*x)/7)*x)-21 = 0

2*x^2+(-6/7)*x^2-21 = 0

8/7*x^2 = 21 // : 8/7

x^2 = 147/8

x^2 = 147/8 // ^ 1/2

abs(x) = (147/8)^(1/2)

x = (147/8)^(1/2) or x = -(147/8)^(1/2)

x in { (147/8)^(1/2), -(147/8)^(1/2) }

See similar equations:

| -15-5-(-18)= | | C=3.14(40) | | 5x^3=24 | | 2(x+1)+2x=x+5 | | q(x)=2x^2+12x-11 | | 64x^6=1 | | 7(2y+5)+(-26y)= | | (3x+5)+(2x+1)=5(x-1)+9 | | 9x-9=5x+7 | | 14+(-3)+5+8+(-2)= | | (1+t)sqrt(k)+4k=1 | | 6-(2y-6)=9-3y | | (1+g)sqrt(k)+4k=1 | | 4=3x+5(x+4) | | a-10b/8a-5a-11b/8a | | 5+6r-3=7r+8-3r | | 3(y-7)-8y=4 | | 7y+4=8y | | 0.02/0.7 | | 7(x-9)+6(4x-7)=30(x-4)-3 | | g=3h+5 | | g=4h+1 | | 5.6(4+4x)-9.4=13 | | 4(u+2)-7u=17 | | 0.7/0.02 | | 5/6-(1/18) | | 5.3=x(x+.6)(x-.1) | | 5/8-(1/8) | | 1/5x-3/8y=12 | | 4y+1-2y=3+y+9 | | -4w-2/3=7/5w-4/5 | | -8(n+8)=2-7n |

Equations solver categories