7x^2-5x+7=0

Simple and best practice solution for 7x^2-5x+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 7x^2-5x+7=0 equation:


Simplifying
7x2 + -5x + 7 = 0

Reorder the terms:
7 + -5x + 7x2 = 0

Solving
7 + -5x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
1 + -0.7142857143x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -0.7142857143x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -0.7142857143x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -0.7142857143x + x2 = 0 + -1
-0.7142857143x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-0.7142857143x + x2 = -1

The x term is -0.7142857143x.  Take half its coefficient (-0.3571428572).
Square it (0.1275510204) and add it to both sides.

Add '0.1275510204' to each side of the equation.
-0.7142857143x + 0.1275510204 + x2 = -1 + 0.1275510204

Reorder the terms:
0.1275510204 + -0.7142857143x + x2 = -1 + 0.1275510204

Combine like terms: -1 + 0.1275510204 = -0.8724489796
0.1275510204 + -0.7142857143x + x2 = -0.8724489796

Factor a perfect square on the left side:
(x + -0.3571428572)(x + -0.3571428572) = -0.8724489796

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0.4(3z+6)+18.6=0.6(3z-5) | | Jah= | | 3.4x=2.7x+4.2 | | x^2-(-12x)+32=0 | | 9x-4y=-34 | | x+(3+x)=41 | | 3(-1)+2y=3 | | 6x+7y=31 | | 3-2y=-9 | | 3-2=-9 | | 9(z+2)-3(z-2)=3(z-2)+2(z-1) | | X^2+ax+a+2=0 | | 4(2x-7)-3=4(x-3)+5 | | 2=.8x^2+1.8x | | -.25[-4+(-5)]+a=16.25 | | 16x-(8x-9)=65 | | 3(6z+1)-7=104 | | 2x-7x+17=3x+25 | | 5x+7x-4x=18+6 | | x(x+5)=126 | | -8(-3-6)+a=86 | | -8p=8 | | -8b+7-4=23 | | -m=40 | | 5p-9p=12 | | -3y+3=-12 | | 13=4x+4 | | x^3-2*x^2-44x-171=0 | | 5y^5=90 | | 6=4z+5 | | 2x+6x-16=0 | | 12=7z+3 |

Equations solver categories