-0.5x^2+3x+0.5=0

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


Simplifying
-0.5x2 + 3x + 0.5 = 0

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

Solving
0.5 + 3x + -0.5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
-1 + -6x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -6x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -6x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -6x + x2 = 0 + 1
-6x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-6x + x2 = 1

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 1 + 9

Reorder the terms:
9 + -6x + x2 = 1 + 9

Combine like terms: 1 + 9 = 10
9 + -6x + x2 = 10

Factor a perfect square on the left side:
(x + -3)(x + -3) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(x + -3) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + -3 = 3.16227766 Simplifying x + -3 = 3.16227766 Reorder the terms: -3 + x = 3.16227766 Solving -3 + x = 3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 3.16227766 + 3 Combine like terms: -3 + 3 = 0 0 + x = 3.16227766 + 3 x = 3.16227766 + 3 Combine like terms: 3.16227766 + 3 = 6.16227766 x = 6.16227766 Simplifying x = 6.16227766

Subproblem 2

x + -3 = -3.16227766 Simplifying x + -3 = -3.16227766 Reorder the terms: -3 + x = -3.16227766 Solving -3 + x = -3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -3.16227766 + 3 Combine like terms: -3 + 3 = 0 0 + x = -3.16227766 + 3 x = -3.16227766 + 3 Combine like terms: -3.16227766 + 3 = -0.16227766 x = -0.16227766 Simplifying x = -0.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.16227766, -0.16227766}

See similar equations:

| 5+2x=30 | | 10(y+1)=80 | | 9=126+45x | | 4f+9=73 | | 22x-4-23=17x+1 | | 9=126-45z | | 4x+8=-42 | | 3-7x=3x+2 | | 17x+1+23= | | -2x+10=6x-6 | | 12-4y=2y+18 | | -8(2t+8)=-48 | | -3(x-3)-4=20 | | 3x-4=2x+32 | | 7m-3=89 | | 16xy-4y= | | 7(x+2)=2(3x-5) | | (10y+30)=100 | | 5x=-7y | | 5b+7=58 | | -7x+17=66 | | 0.93=logx | | y=-0.80*55+121 | | 12b+9bc= | | X-1/3=X/6 | | y=-0.80*45+121 | | 3x^4-6x^3/9x^4 | | y=-0.80*35+121 | | (z^2+7)-5(4+z)=-19 | | (11x-30)=80 | | 7x+2+115+145=90 | | 93w-45=3 |

Equations solver categories