2x^2-5x+7=0

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


Simplifying
2x2 + -5x + 7 = 0

Reorder the terms:
7 + -5x + 2x2 = 0

Solving
7 + -5x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
3.5 + -2.5x + x2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -2.5x + -3.5 + x2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -2.5x + x2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -2.5x + x2 = 0 + -3.5
-2.5x + x2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-2.5x + x2 = -3.5

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = -3.5 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = -3.5 + 1.5625

Combine like terms: -3.5 + 1.5625 = -1.9375
1.5625 + -2.5x + x2 = -1.9375

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = -1.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x^2-5x-88=0 | | 8x^2-18x-5=0 | | 0=n^2-n | | 8x^2+10x+3=0 | | -2(3x+3)=36 | | 7+2x=-7x+43 | | -3x+2+2x=-1 | | -70x+5x=-20 | | 10+5x=45 | | x-9=-10 | | -6(1+7x)=-6 | | -2x+3=31-6x | | 4-5x-2x=-31 | | -1-4x=-33 | | X^2-4y+3=0 | | 4x+15=63 | | 9-14= | | x^2=30-13x | | -5+y=-1 | | -8x+14=-18 | | -7x-2=26 | | -7m=7 | | -3x+17=-4 | | 2x-1=x | | -2x-5=19 | | 0=m^2+3m-54 | | 4x+17=27 | | -4+a=-9 | | -3+m=13 | | -32-4x+x^2=0 | | -6+r=16 | | 6t=6 |

Equations solver categories