x^2-2.5x+1.56=0

Simple and best practice solution for x^2-2.5x+1.56=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 x^2-2.5x+1.56=0 equation:


Simplifying
x2 + -2.5x + 1.56 = 0

Reorder the terms:
1.56 + -2.5x + x2 = 0

Solving
1.56 + -2.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-1.56' to each side of the equation.
1.56 + -2.5x + -1.56 + x2 = 0 + -1.56

Reorder the terms:
1.56 + -1.56 + -2.5x + x2 = 0 + -1.56

Combine like terms: 1.56 + -1.56 = 0.00
0.00 + -2.5x + x2 = 0 + -1.56
-2.5x + x2 = 0 + -1.56

Combine like terms: 0 + -1.56 = -1.56
-2.5x + x2 = -1.56

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 = -1.56 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = -1.56 + 1.5625

Combine like terms: -1.56 + 1.5625 = 0.0025
1.5625 + -2.5x + x2 = 0.0025

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 0.0025

Calculate the square root of the right side: 0.05

Break this problem into two subproblems by setting 
(x + -1.25) equal to 0.05 and -0.05.

Subproblem 1

x + -1.25 = 0.05 Simplifying x + -1.25 = 0.05 Reorder the terms: -1.25 + x = 0.05 Solving -1.25 + x = 0.05 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 0.05 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 0.05 + 1.25 x = 0.05 + 1.25 Combine like terms: 0.05 + 1.25 = 1.3 x = 1.3 Simplifying x = 1.3

Subproblem 2

x + -1.25 = -0.05 Simplifying x + -1.25 = -0.05 Reorder the terms: -1.25 + x = -0.05 Solving -1.25 + x = -0.05 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -0.05 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -0.05 + 1.25 x = -0.05 + 1.25 Combine like terms: -0.05 + 1.25 = 1.2 x = 1.2 Simplifying x = 1.2

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3, 1.2}

See similar equations:

| ((6m/m^2-4)-(3/m-2)) | | =40x+20 | | xy+3x-4=0 | | 25+1.50x=75 | | y-3=x+3 | | C=40x+20 | | 5-8[6-(7y-7)]=0 | | p=150-3x | | -5t^2+12t+14=17 | | 9r-6+4r+19+8r+3=180 | | 9r-6=4r+19 | | 2(3x-5)=5x-14 | | 4r+19=8r+3 | | 15x/5x | | 3x(2x+1)-(2x+1)=0 | | 74.5=x+(x*.1) | | 71/4x1/18 | | -23x+7y=11 | | 4.3+2.5-2.2x+2.2-2.1x=0 | | -(6y+4)-(-5y-5)=3 | | (x-6)=(x-6)(x+6) | | X+3=x(x)+51 | | 4/5/10/21 | | 1.4=x/(2.0-x) | | 40x+15y=1850 | | 10/21*5/4 | | 4/5*21/10 | | -6(0.2x+0.3)-1.9=0.1 | | 6(a-7)+14=2(a-4) | | 3k^2-4=2k^2 | | (4n^3)n^2= | | x-54=32 |

Equations solver categories