-1x2+9=0

Simple and best practice solution for -1x2+9=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 -1x2+9=0 equation: 



-1x^2+9=0

a = -1; b = 0; c = +9;
Δ = b2-4ac
Δ = 02-4·(-1)·9
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-6}{2*-1}=\frac{-6}{-2}
=+3
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+6}{2*-1}=\frac{6}{-2}
=-3
$

See similar equations:

| 4.6+x=8.9 | | 6x+4x-26=86 | | x-34=-3.2 | | x+1.8=-3.2 | | 1x2-81=0 | | 6x-24=86+4x | | 10x-13=5x-18 | | -x+16=-3x+4 | | 12x+3=5x+45 | | -3x-12=-x-32 | | 100x2=0 | | 7x+22=29 | | 2x-2=-2x-14 | | 14x-5+3x²=0 | | -8w+4(w+7)=32 | | 3x=80-2x | | (y+2)*4=64 | | 4(x-2)-3x=1.7 | | 5a+3=25 | | 6b+18=8b+6 | | 9x2X16=0 | | -8v-48=2(v-4) | | 9x2•16=0 | | -8v48=2(v-4) | | 9x^2x16=0 | | f(20)=2(20)^2+5(20)-17 | | 11a−4=40 | | 11m−4=40 | | 3/4+m=-5/4 | | 4x+15=-2x+39 | | 2-2s=3/2s+13 | | 7x-2=x-26 |

Equations solver categories