2b^2-9b+7=0

Simple and best practice solution for 2b^2-9b+7=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 2b^2-9b+7=0 equation: 



2b^2-9b+7=0

a = 2; b = -9; c = +7;
Δ = b2-4ac
Δ = -92-4·2·7
Δ = 25
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{25}=5$


$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-5}{2*2}=\frac{4}{4}
=1
$


$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+5}{2*2}=\frac{14}{4}
=3+1/2
$

See similar equations:

| 5n2+12n+4=0 | | -2.5w=15 | | 6n-8=36 | | 8x+6-12=30 | | 18-6w=-24 | | 11n-9=-31 | | -155-4x=6-3x | | 5-4(2b-5)+3=15 | | 17+8x-3=84 | | 1/2(10h-5)=12.5 | | 7^2x+12=7^10x | | 2x-9=96 | | (3x-5)+(19-x)2x= | | -3(y+1)+10y-4=14 | | -5/3y=-15 | | 2+(x*6)=38 | | 3t-5=t+5 | | 23x/20+4x-13/5=7x/5+4x-5/20 | | 2+(x*6)=28 | | 4(x+2)+2=2(x+6) | | 2u/9=-12 | | r/2-4=14 | | 2j-10j=-32 | | 7y/3=35 | | 5n-10=3n+36 | | r/2-6=15 | | 3k+9=15 | | −3t2+11t−6= | | 50-4x=180 | | 22*x=220 | | x+127=70 | | 27,500=(9.5x)+(2.5*(.6*x)) |

Equations solver categories