x^2-15x+56.25=0

Simple and best practice solution for x^2-15x+56.25=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^2-15x+56.25=0 equation:


Simplifying
x2 + -15x + 56.25 = 0

Reorder the terms:
56.25 + -15x + x2 = 0

Solving
56.25 + -15x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-56.25' to each side of the equation.
56.25 + -15x + -56.25 + x2 = 0 + -56.25

Reorder the terms:
56.25 + -56.25 + -15x + x2 = 0 + -56.25

Combine like terms: 56.25 + -56.25 = 0.00
0.00 + -15x + x2 = 0 + -56.25
-15x + x2 = 0 + -56.25

Combine like terms: 0 + -56.25 = -56.25
-15x + x2 = -56.25

The x term is -15x.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15x + 56.25 + x2 = -56.25 + 56.25

Reorder the terms:
56.25 + -15x + x2 = -56.25 + 56.25

Combine like terms: -56.25 + 56.25 = 0.00
56.25 + -15x + x2 = 0.00

Factor a perfect square on the left side:
(x + -7.5)(x + -7.5) = 0.00

Calculate the square root of the right side: 0.00

Break this problem into two subproblems by setting 
(x + -7.5) equal to 0.00 and 0.00.

Subproblem 1

x + -7.5 = 0.00 Simplifying x + -7.5 = 0.00 Reorder the terms: -7.5 + x = 0.00 Solving -7.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 0.00 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 0.00 + 7.5 x = 0.00 + 7.5 Combine like terms: 0.00 + 7.5 = 7.5 x = 7.5 Simplifying x = 7.5

Subproblem 2

x + -7.5 = 0.00 Simplifying x + -7.5 = 0.00 Reorder the terms: -7.5 + x = 0.00 Solving -7.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 0.00 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 0.00 + 7.5 x = 0.00 + 7.5 Combine like terms: 0.00 + 7.5 = 7.5 x = 7.5 Simplifying x = 7.5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.5, 7.5}

See similar equations:

| 4n--7=5-2n | | x/4-1=-6 | | 5(p+6)=9x | | c=x+0.06x+0.15x | | 4x-5-13x=-32 | | 2+6a=5 | | 7(m+6)=98 | | -16/4= | | 4(x-3)=-52 | | 5x+8=3x+58 | | -5.89x+7.5=2.18 | | -37+x=-6(7x-1) | | -5(4x+3)-9=-3(-3x+6) | | 2+3[4+2(2)]= | | 33*5*-2= | | 0.6a+4=10 | | 4y-20=12y+2 | | -5=12 | | 0.3x-0.9(6-x)=-1.2 | | 2r-(5-r)=13-2r | | 33*x*y= | | 24+4(z-4)=6z-2 | | 5y-8=y-22 | | 2(0.78+0.4x)=0.01x | | 14=(-2k)+3 | | 2m+1/2(m-4)=9 | | -9(4b+1)+(37b-6)=0 | | 7g+14-5=-8 | | 7times(10-3w)=5(15-4w) | | 7n-(5n-6)=18 | | 6*(x-5)*(x-2)-2*(x-3)*(x-4)*(x-2)=2*x*(x-3)*(x-4)*(x-5) | | x^2-9x-34=0 |

Equations solver categories