2(3x^2)=85

Simple and best practice solution for 2(3x^2)=85 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 2(3x^2)=85 equation:



2(3x^2)=85
We move all terms to the left:
2(3x^2)-(85)=0
a = 23; b = 0; c = -85;
Δ = b2-4ac
Δ = 02-4·23·(-85)
Δ = 7820
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{7820}=\sqrt{4*1955}=\sqrt{4}*\sqrt{1955}=2\sqrt{1955}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{1955}}{2*23}=\frac{0-2\sqrt{1955}}{46} =-\frac{2\sqrt{1955}}{46} =-\frac{\sqrt{1955}}{23} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{1955}}{2*23}=\frac{0+2\sqrt{1955}}{46} =\frac{2\sqrt{1955}}{46} =\frac{\sqrt{1955}}{23} $

See similar equations:

| -6x-7=108 | | 1/4(x-8)=1/2(x+6) | | 1/4-h/6=2/9 | | 2x(10x-6)=90 | | -88-9=x | | x2+9x+8=40 | | -v/9=7=14 | | 2n2+7=-4n+5 | | 6^x+1=4^2x-1 | | 6(h-3)=42 | | 14.2=0.4(20n-78) | | 55-3b=19 | | 5x-2=9x-4x-2 | | .8a-7=9 | | 4x^2-18=2 | | .a-7=9 | | 2(8-5x)=8x-2(4+6x) | | 12x+2+5=12x+2 | | 5(7-2n)=35 | | 5n-16=n-20 | | x-1=x-2 | | 2x^2-2x-15=5 | | 96=1/2(8x) | | 6(x+1)=7x+6 | | 2m=-30+5m | | x+(x-3)+2x=57 | | 7x-4x=2(x+6)+x | | 5(1=4m)=2(3+10m | | 5(p-7)=35 | | 10(x+2)-6x=2x+24 | | 6x-3=3x+29 | | 6x-3+3x+29=90 |

Equations solver categories