3x^2-7x+13=0

Simple and best practice solution for 3x^2-7x+13=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^2-7x+13=0 equation:


Simplifying
3x2 + -7x + 13 = 0

Reorder the terms:
13 + -7x + 3x2 = 0

Solving
13 + -7x + 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'.
4.333333333 + -2.333333333x + x2 = 0

Move the constant term to the right:

Add '-4.333333333' to each side of the equation.
4.333333333 + -2.333333333x + -4.333333333 + x2 = 0 + -4.333333333

Reorder the terms:
4.333333333 + -4.333333333 + -2.333333333x + x2 = 0 + -4.333333333

Combine like terms: 4.333333333 + -4.333333333 = 0.000000000
0.000000000 + -2.333333333x + x2 = 0 + -4.333333333
-2.333333333x + x2 = 0 + -4.333333333

Combine like terms: 0 + -4.333333333 = -4.333333333
-2.333333333x + x2 = -4.333333333

The x term is -2.333333333x.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333x + 1.361111112 + x2 = -4.333333333 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333x + x2 = -4.333333333 + 1.361111112

Combine like terms: -4.333333333 + 1.361111112 = -2.972222221
1.361111112 + -2.333333333x + x2 = -2.972222221

Factor a perfect square on the left side:
(x + -1.166666667)(x + -1.166666667) = -2.972222221

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2.3x=18.4 | | 8x+9y=-15 | | 3/4(3x+1)=2(3-2x)+1 | | 3x=-7/9 | | 6m^4+4m^2-16=0 | | 6m^2+13m-2=0 | | 2.5x+2.2=7.3 | | 3x-(6-x)=-22 | | 3.7x-3.18=12.508 | | 7x^3-2x^2-35x+10= | | 2x+tanx=0 | | 7a^4-51a^2+14=0 | | 5.14x+8.96=2.9x | | 6x^2+10-5= | | 3x-4=2x^2+x+1 | | y=27.5(109.5)-1635.75 | | 4(x-30)=20 | | 16=.5*3(a+4) | | 1/2(y-1/5)=1/5(y+2) | | 23+2=3 | | i=200+0.11+2 | | -14=16x+1 | | 8x=-6 | | 92=-4(1-3x) | | p=68+145 | | 5x-36-11x=3x+3x | | 3x-5y=-47 | | x/2-1=x/7+4 | | -5x-19y=3.5 | | 4(m-5)=5(m-7) | | 1+2x=2(2x+6)-3(x-1) | | 6x-700=4x+500 |

Equations solver categories