7b^2-31b+12=0

Simple and best practice solution for 7b^2-31b+12=0 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 7b^2-31b+12=0 equation: 



7b^2-31b+12=0

a = 7; b = -31; c = +12;
Δ = b2-4ac
Δ = -312-4·7·12
Δ = 625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{625}=25$


$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-31)-25}{2*7}=\frac{6}{14}
=3/7
$


$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-31)+25}{2*7}=\frac{56}{14}
=4
$

See similar equations:

| 4n+2=6(​3​​1​​n−​3​​2​​) | | 12=-2x+7-3x | | 3b−8=24−b | | -22=6y+4(y-3) | | (4^x)+2^(x+1)=3 | | -16=12x | | -8/9x+2/3=5/9 | | 2n*2/2–5=22 | | m=4/0.5 | | 6s+4.16=38.18 | | 2n·2/2–5=22 | | r/7=70/100 | | 3/2y=4+1/2y | | -4r+5=-4r+5 | | 4(9x+7)=36x-6 | | 3x+7=-8-6 | | 6.6x-2.5=23.9 | | 11=15u=-7+13u | | A=5x+10=5x+20 | | 4(9x+7=36x-6 | | 4x-9=3+4(x-3) | | 4/3z=24 | | 10w=w+54 | | -7.75=1+w/7 | | 0.17x+0.6(x-5)=0.01(3x-5) | | X/x^2-1-x+3/x^2-x=-3/x^2+x | | 74+450x=25x | | -2(x+7)=-9 | | 5+9(x-9)=10-3(x-8) | | x+1.5−0.5x=4.5 | | 5x3-12x-16=0 | | x/2-3=3/4 |

Equations solver categories