x^2-30x+60=0

Simple and best practice solution for x^2-30x+60=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^2-30x+60=0 equation:


Simplifying
x2 + -30x + 60 = 0

Reorder the terms:
60 + -30x + x2 = 0

Solving
60 + -30x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-60' to each side of the equation.
60 + -30x + -60 + x2 = 0 + -60

Reorder the terms:
60 + -60 + -30x + x2 = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -30x + x2 = 0 + -60
-30x + x2 = 0 + -60

Combine like terms: 0 + -60 = -60
-30x + x2 = -60

The x term is -30x.  Take half its coefficient (-15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
-30x + 225 + x2 = -60 + 225

Reorder the terms:
225 + -30x + x2 = -60 + 225

Combine like terms: -60 + 225 = 165
225 + -30x + x2 = 165

Factor a perfect square on the left side:
(x + -15)(x + -15) = 165

Calculate the square root of the right side: 12.845232579

Break this problem into two subproblems by setting 
(x + -15) equal to 12.845232579 and -12.845232579.

Subproblem 1

x + -15 = 12.845232579 Simplifying x + -15 = 12.845232579 Reorder the terms: -15 + x = 12.845232579 Solving -15 + x = 12.845232579 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = 12.845232579 + 15 Combine like terms: -15 + 15 = 0 0 + x = 12.845232579 + 15 x = 12.845232579 + 15 Combine like terms: 12.845232579 + 15 = 27.845232579 x = 27.845232579 Simplifying x = 27.845232579

Subproblem 2

x + -15 = -12.845232579 Simplifying x + -15 = -12.845232579 Reorder the terms: -15 + x = -12.845232579 Solving -15 + x = -12.845232579 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = -12.845232579 + 15 Combine like terms: -15 + 15 = 0 0 + x = -12.845232579 + 15 x = -12.845232579 + 15 Combine like terms: -12.845232579 + 15 = 2.154767421 x = 2.154767421 Simplifying x = 2.154767421

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.845232579, 2.154767421}

See similar equations:

| (-10/7)+1/6 | | b2s1/2j1/2=119 | | (3x+5)(4x-7)=0 | | 0.166(-4.01619-4)=0.33(2(-4.01619)+4) | | -6=t/4 | | 3(n+7)=8n-9 | | -21=x-1 | | (x+5)(x+5)+49=0 | | 1/3-(-5/3) | | 29=x+15 | | 10=a-2 | | 3+m=-15 | | 4x-8=6x-32 | | 6x^4-48x=0 | | 12=n+17 | | 6X^2+x=14 | | 1/4x=1/3x | | -5g-6forg=-2 | | 3.11x+14.96=7.83-23.41 | | x^3-5x^2+8x-10=0 | | 1/12-1/15 | | 8/20x12/18 | | 6-1/6 | | 2/5+4/5 | | 1993x+3991=9319-9913 | | 1x+11=22 | | 3/2-1/2 | | 42/5x15/7 | | 0.166(a-4)=0.33(2a+4) | | 5/4-3/4 | | 1/2-1/2=y | | 3x-8+8=16+8 |

Equations solver categories