x^2+5x+6.25=0

Simple and best practice solution for x^2+5x+6.25=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+5x+6.25=0 equation:


Simplifying
x2 + 5x + 6.25 = 0

Reorder the terms:
6.25 + 5x + x2 = 0

Solving
6.25 + 5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-6.25' to each side of the equation.
6.25 + 5x + -6.25 + x2 = 0 + -6.25

Reorder the terms:
6.25 + -6.25 + 5x + x2 = 0 + -6.25

Combine like terms: 6.25 + -6.25 = 0.00
0.00 + 5x + x2 = 0 + -6.25
5x + x2 = 0 + -6.25

Combine like terms: 0 + -6.25 = -6.25
5x + x2 = -6.25

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -6.25 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -6.25 + 6.25

Combine like terms: -6.25 + 6.25 = 0.00
6.25 + 5x + x2 = 0.00

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 0.00

Calculate the square root of the right side: 0.00

Break this problem into two subproblems by setting 
(x + 2.5) equal to 0.00 and 0.00.

Subproblem 1

x + 2.5 = 0.00 Simplifying x + 2.5 = 0.00 Reorder the terms: 2.5 + x = 0.00 Solving 2.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 0.00 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 0.00 + -2.5 x = 0.00 + -2.5 Combine like terms: 0.00 + -2.5 = -2.5 x = -2.5 Simplifying x = -2.5

Subproblem 2

x + 2.5 = 0.00 Simplifying x + 2.5 = 0.00 Reorder the terms: 2.5 + x = 0.00 Solving 2.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 0.00 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 0.00 + -2.5 x = 0.00 + -2.5 Combine like terms: 0.00 + -2.5 = -2.5 x = -2.5 Simplifying x = -2.5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.5, -2.5}

See similar equations:

| 1.5-8=19 | | -2u+18=-4u+10 | | 35.0=x+1.50x | | 7n=1.5n | | 35=x+1.50 | | 3x+7(x+6)-45=9x+3 | | -x^3-2x^2+5x+2=0 | | 59.3-3.1y=12 | | 29=7x+5-4x | | 4x+5=-23 | | a+3b=3 | | (b^3+4b^2-6b+2)=(b-1) | | a+6b=12 | | 7x-(6x+6)=0 | | (x^4+7x-6)(4x^3+14x)= | | x^2-5=8-2x^2 | | 6-14x=12-5x^2 | | x+3x=243 | | 0=-16t^2+100 | | 3y=12x-9 | | x^2-7.5x-4=0 | | 3(9-1)=4(a-1.5) | | 6x+7=13+7x | | 3(s-8)=4(s-3)+2 | | 14x-49=x^2 | | -2x+14-x-4=11 | | 3x+x=243 | | x+3=243 | | 7x+x=5x+10 | | 2x^2-23x+56=0 | | -4-20s-25s^2=0 | | 8r+7=43r+14 |

Equations solver categories