3X2-3x=61.75

Simple and best practice solution for 3X2-3x=61.75 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 3X2-3x=61.75 equation:



3X^2-3X=61.75
We move all terms to the left:
3X^2-3X-(61.75)=0
We add all the numbers together, and all the variables
3X^2-3X-61.75=0
a = 3; b = -3; c = -61.75;
Δ = b2-4ac
Δ = -32-4·3·(-61.75)
Δ = 750
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:
$\sqrt{\Delta}=\sqrt{750}=\sqrt{25*30}=\sqrt{25}*\sqrt{30}=5\sqrt{30}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-5\sqrt{30}}{2*3}=\frac{3-5\sqrt{30}}{6} $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+5\sqrt{30}}{2*3}=\frac{3+5\sqrt{30}}{6} $

See similar equations:

| 3x-15.5=2.5 | | 3.8x+38.4=16.6-7.1x | | 6+13m-5=8m+45-6m | | 5.5+1.1n=2.97 | | -4n-8=-12n | | 3c+15=-22c+17 | | 4r-3=9r=12 | | 5+(2.10)=x | | 2.10=x | | (2x-15)=x-3 | | 2/3x+x=60 | | 2t^2-50=30t | | Y=4z-9 | | 6=4u-9/5+2u+9/7 | | 6x−7=7x+5 | | y+9y+-2y-5=3 | | -1/4×a-4=7/4×a-3 | | 2(3x+5+4x-3)=0 | | 11x–2x+15=8+7+9x | | 6x–3=5x+5 | | 813÷x=213÷9.1 | | x/4=1/7 | | 7x+7=73 | | 1.13=0.49^x | | 6b^2-b+10=0 | | 2x-5=3x-22 | | 4^x=22 | | x/24=6/8 | | 4^x-2=20 | | 10x-4=x-14 | | 3x+5+x-25=180 | | 4x+x=46.8 |

Equations solver categories