x^2-0.5x-3=0

Simple and best practice solution for x^2-0.5x-3=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^2-0.5x-3=0 equation:


Simplifying
x2 + -0.5x + -3 = 0

Reorder the terms:
-3 + -0.5x + x2 = 0

Solving
-3 + -0.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -0.5x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -0.5x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -0.5x + x2 = 0 + 3
-0.5x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-0.5x + x2 = 3

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 3 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 3 + 0.0625

Combine like terms: 3 + 0.0625 = 3.0625
0.0625 + -0.5x + x2 = 3.0625

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 3.0625

Calculate the square root of the right side: 1.75

Break this problem into two subproblems by setting 
(x + -0.25) equal to 1.75 and -1.75.

Subproblem 1

x + -0.25 = 1.75 Simplifying x + -0.25 = 1.75 Reorder the terms: -0.25 + x = 1.75 Solving -0.25 + x = 1.75 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 1.75 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 1.75 + 0.25 x = 1.75 + 0.25 Combine like terms: 1.75 + 0.25 = 2 x = 2 Simplifying x = 2

Subproblem 2

x + -0.25 = -1.75 Simplifying x + -0.25 = -1.75 Reorder the terms: -0.25 + x = -1.75 Solving -0.25 + x = -1.75 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -1.75 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -1.75 + 0.25 x = -1.75 + 0.25 Combine like terms: -1.75 + 0.25 = -1.5 x = -1.5 Simplifying x = -1.5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2, -1.5}

See similar equations:

| -6-21=r | | 13-(-9x)+4x-(-10)= | | 16+3x=45 | | 24+24=46+6 | | -37-5x=2x+15 | | 24+24=46+2 | | 2x+3(1.5)=2772 | | 5(y-1)=6(y-5) | | 1/3x-6=4+2x | | 9+8x=93 | | 4=7v-8/8+v-6/4 | | 4b-6-12b-4= | | 2x+3y=2772 | | x-25=5+11x | | K=-5/2 | | 3y-(-4y+3)=-17 | | (x-2)/6=(x+3)/9 | | 35-8x=22 | | 7(6+2)= | | -(5a+4)+1=2-(5a-1) | | -22.4+6x=75.5 | | t/-17.7=-12.7 | | -(2a-2)+3=3-(2a+5) | | 6(3-2)x=54 | | 5(a+4)-(4a+4)=4(5a-2)+5 | | 900=x-.5 | | 7(2y+7)+(-36y)= | | 6x^5-4x^2+10x=0 | | -6n-1n=16 | | x^8-2x=0 | | 8(-16)/2(-8)-5(-3) | | 4-4(2a-3)=0 |

Equations solver categories