9x^2-60x=100

Simple and best practice solution for 9x^2-60x=100 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 9x^2-60x=100 equation:


Simplifying
9x2 + -60x = 100

Reorder the terms:
-60x + 9x2 = 100

Solving
-60x + 9x2 = 100

Solving for variable 'x'.

Reorder the terms:
-100 + -60x + 9x2 = 100 + -100

Combine like terms: 100 + -100 = 0
-100 + -60x + 9x2 = 0

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

Divide each side by '9'.
-11.11111111 + -6.666666667x + x2 = 0

Move the constant term to the right:

Add '11.11111111' to each side of the equation.
-11.11111111 + -6.666666667x + 11.11111111 + x2 = 0 + 11.11111111

Reorder the terms:
-11.11111111 + 11.11111111 + -6.666666667x + x2 = 0 + 11.11111111

Combine like terms: -11.11111111 + 11.11111111 = 0.00000000
0.00000000 + -6.666666667x + x2 = 0 + 11.11111111
-6.666666667x + x2 = 0 + 11.11111111

Combine like terms: 0 + 11.11111111 = 11.11111111
-6.666666667x + x2 = 11.11111111

The x term is -6.666666667x.  Take half its coefficient (-3.333333334).
Square it (11.11111112) and add it to both sides.

Add '11.11111112' to each side of the equation.
-6.666666667x + 11.11111112 + x2 = 11.11111111 + 11.11111112

Reorder the terms:
11.11111112 + -6.666666667x + x2 = 11.11111111 + 11.11111112

Combine like terms: 11.11111111 + 11.11111112 = 22.22222223
11.11111112 + -6.666666667x + x2 = 22.22222223

Factor a perfect square on the left side:
(x + -3.333333334)(x + -3.333333334) = 22.22222223

Calculate the square root of the right side: 4.714045209

Break this problem into two subproblems by setting 
(x + -3.333333334) equal to 4.714045209 and -4.714045209.

Subproblem 1

x + -3.333333334 = 4.714045209 Simplifying x + -3.333333334 = 4.714045209 Reorder the terms: -3.333333334 + x = 4.714045209 Solving -3.333333334 + x = 4.714045209 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.333333334' to each side of the equation. -3.333333334 + 3.333333334 + x = 4.714045209 + 3.333333334 Combine like terms: -3.333333334 + 3.333333334 = 0.000000000 0.000000000 + x = 4.714045209 + 3.333333334 x = 4.714045209 + 3.333333334 Combine like terms: 4.714045209 + 3.333333334 = 8.047378543 x = 8.047378543 Simplifying x = 8.047378543

Subproblem 2

x + -3.333333334 = -4.714045209 Simplifying x + -3.333333334 = -4.714045209 Reorder the terms: -3.333333334 + x = -4.714045209 Solving -3.333333334 + x = -4.714045209 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.333333334' to each side of the equation. -3.333333334 + 3.333333334 + x = -4.714045209 + 3.333333334 Combine like terms: -3.333333334 + 3.333333334 = 0.000000000 0.000000000 + x = -4.714045209 + 3.333333334 x = -4.714045209 + 3.333333334 Combine like terms: -4.714045209 + 3.333333334 = -1.380711875 x = -1.380711875 Simplifying x = -1.380711875

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.047378543, -1.380711875}

See similar equations:

| 7p^2+2=12p | | 1x+5x=17-5 | | 7a-6=-3a+24 | | 12+4d=2d-20 | | 75.00(x+9.00)=11025 | | 5x-8=18-x | | 75.00(x+9.00)=2475 | | 20x-66=14x-9 | | B+23+7b-8=63 | | 0.65a=39 | | 0.80p=16 | | 5x+2y=-20 | | -8x+y=37 | | 6y-5=7y-20 | | 8e+3e+2e+7e+e= | | 32+x=5 | | 4y^3-100y=0 | | 4f+4f+4f+4f= | | x-3=-x+1 | | (1+x)(2x)=12x | | 2y-7=93 | | x^2-12x+17=0 | | (x^2-5*x+4)*(x^2-5*x+4)*(x^2-5*x+4)*(x^2-5*x+4)=0 | | -20x^2+29-6=0 | | y^2-x^2=289 | | x^5+5*x^4+8*x^3-80*x^2+148*x-80=0 | | 5x^2+12x=9 | | 2x^2+20x-22=0 | | 36x^2-12x+24=0 | | 5x=9x-10 | | 4x^2-6x-56=3x^3-16 | | 7x+15=3x+9-2x |

Equations solver categories