3x^2-4x=-5

Simple and best practice solution for 3x^2-4x=-5 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^2-4x=-5 equation:


Simplifying
3x2 + -4x = -5

Reorder the terms:
-4x + 3x2 = -5

Solving
-4x + 3x2 = -5

Solving for variable 'x'.

Reorder the terms:
5 + -4x + 3x2 = -5 + 5

Combine like terms: -5 + 5 = 0
5 + -4x + 3x2 = 0

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

Divide each side by '3'.
1.666666667 + -1.333333333x + x2 = 0

Move the constant term to the right:

Add '-1.666666667' to each side of the equation.
1.666666667 + -1.333333333x + -1.666666667 + x2 = 0 + -1.666666667

Reorder the terms:
1.666666667 + -1.666666667 + -1.333333333x + x2 = 0 + -1.666666667

Combine like terms: 1.666666667 + -1.666666667 = 0.000000000
0.000000000 + -1.333333333x + x2 = 0 + -1.666666667
-1.333333333x + x2 = 0 + -1.666666667

Combine like terms: 0 + -1.666666667 = -1.666666667
-1.333333333x + x2 = -1.666666667

The x term is -1.333333333x.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333x + 0.4444444442 + x2 = -1.666666667 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333x + x2 = -1.666666667 + 0.4444444442

Combine like terms: -1.666666667 + 0.4444444442 = -1.2222222228
0.4444444442 + -1.333333333x + x2 = -1.2222222228

Factor a perfect square on the left side:
(x + -0.6666666665)(x + -0.6666666665) = -1.2222222228

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| [2x-6]=-16 | | 2(5-x)=3(2-4x) | | 9x+22=6x+103 | | -2m-6=3m+4 | | 111-5x=22x+18 | | [2x-6]=16 | | -40-2=-42 | | 9z-3=5z+2 | | x^2+x+36=0 | | 7x=-2x+18 | | 3x^2+7x^2=90 | | 2x+3(7-5x)=4 | | 10=4x-2(x-8) | | 2x+21-15x=4 | | a+12=4a | | 3x+22=64 | | y=7x+6 | | 122-2x=16x+22 | | 6+.8a=.9a | | 2p-6-6p=10-2p+4 | | 6+|5y+2|=9 | | -10+3x=26 | | 8x+4y=100 | | 5x-4=3(x+2) | | y=x^2+2x-8 | | 25+75=500 | | 5.5+(-1.4p)=-9.7 | | z-7-13=-2 | | -7=c-12 | | 3x+35=2x+62 | | 20y+3y=2y-50 | | x^2(-2x)-35=0 |

Equations solver categories