2x-5=7x^2

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


Simplifying
2x + -5 = 7x2

Reorder the terms:
-5 + 2x = 7x2

Solving
-5 + 2x = 7x2

Solving for variable 'x'.

Combine like terms: 7x2 + -7x2 = 0
-5 + 2x + -7x2 = 0

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

Divide each side by '-7'.
0.7142857143 + -0.2857142857x + x2 = 0

Move the constant term to the right:

Add '-0.7142857143' to each side of the equation.
0.7142857143 + -0.2857142857x + -0.7142857143 + x2 = 0 + -0.7142857143

Reorder the terms:
0.7142857143 + -0.7142857143 + -0.2857142857x + x2 = 0 + -0.7142857143

Combine like terms: 0.7142857143 + -0.7142857143 = 0.0000000000
0.0000000000 + -0.2857142857x + x2 = 0 + -0.7142857143
-0.2857142857x + x2 = 0 + -0.7142857143

Combine like terms: 0 + -0.7142857143 = -0.7142857143
-0.2857142857x + x2 = -0.7142857143

The x term is -0.2857142857x.  Take half its coefficient (-0.1428571429).
Square it (0.02040816328) and add it to both sides.

Add '0.02040816328' to each side of the equation.
-0.2857142857x + 0.02040816328 + x2 = -0.7142857143 + 0.02040816328

Reorder the terms:
0.02040816328 + -0.2857142857x + x2 = -0.7142857143 + 0.02040816328

Combine like terms: -0.7142857143 + 0.02040816328 = -0.69387755102
0.02040816328 + -0.2857142857x + x2 = -0.69387755102

Factor a perfect square on the left side:
(x + -0.1428571429)(x + -0.1428571429) = -0.69387755102

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 12n+4=-6n-14 | | x/10=x/11-6 | | 5e-2r=3+6 | | 1/4x=1/2x-9 | | 4/5x=120 | | -50=7k | | 2x+5=7x^2 | | 4/5x=48 | | 8.49*2= | | x/4+9=7 | | 3(x-4)=4(x-3) | | 0.28*12= | | 4(3x+2)-x+8+9=3 | | 24*3.5= | | 24*2.5= | | 6(4x+1)=4x-9x | | -1x-2+15x= | | 2.25*14= | | -8-x=x-8x | | -2x-25=-3 | | 6.02*11= | | 4d*7=11 | | 61*15.98= | | (6x/7)-(2x/21)=(25/21) | | -5-x=8 | | -10+2x=-52 | | p/2.8=0.6 | | 2/5x+3-4/5x=1/5 | | 2x+3x-7x+12-9=10 | | -3(4p+4)-2p=-82 | | 15x-4=14x-7 | | 23*059.8= |

Equations solver categories