-3x^2+2x-7=0

Simple and best practice solution for -3x^2+2x-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 -3x^2+2x-7=0 equation:


Simplifying
-3x2 + 2x + -7 = 0

Reorder the terms:
-7 + 2x + -3x2 = 0

Solving
-7 + 2x + -3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
2.333333333 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '-2.333333333' to each side of the equation.
2.333333333 + -0.6666666667x + -2.333333333 + x2 = 0 + -2.333333333

Reorder the terms:
2.333333333 + -2.333333333 + -0.6666666667x + x2 = 0 + -2.333333333

Combine like terms: 2.333333333 + -2.333333333 = 0.000000000
0.000000000 + -0.6666666667x + x2 = 0 + -2.333333333
-0.6666666667x + x2 = 0 + -2.333333333

Combine like terms: 0 + -2.333333333 = -2.333333333
-0.6666666667x + x2 = -2.333333333

The x term is -0.6666666667x.  Take half its coefficient (-0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
-0.6666666667x + 0.1111111112 + x2 = -2.333333333 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = -2.333333333 + 0.1111111112

Combine like terms: -2.333333333 + 0.1111111112 = -2.2222222218
0.1111111112 + -0.6666666667x + x2 = -2.2222222218

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = -2.2222222218

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4x=3x+4x | | 8q=-10q+32 | | a[x-(-3)][x-(-3)][x-(5-3i)][x-(5+3i)]=0 | | [x-(-3)][x-(-3)][x-(5-3i)][x-(5+3i)]=0 | | 100-8x=60 | | 4x^2-16=48 | | 11n=10n+8 | | -4+2x=12+16x | | 3x^2+20x+21=0 | | 0=x*x-2x+1 | | 100=a+25 | | 12=15(z-0.2) | | 9a+13=-11a+3 | | 4/3(3.14)(26)^3 | | 6x+1+3x+11+25=180 | | 5z+7=6z+8 | | 4=x*x-2x+1 | | 6x+1+3x+11+y=180 | | 14+8x-7= | | tan(x)=57 | | 7y+12=-5y+5 | | 5x-8=6x+16 | | 8n^2+52n=6438 | | 2x^2+8x+2y^2-5y-5=0 | | 8x+50=200 | | 12+5x=3x+(-2) | | x+0.05x=910000 | | 5/6-2/3x | | (4x-2x)= | | 2x^3+15x^2-378=0 | | 4/7×1/2= | | x+0.05x=91000 |

Equations solver categories