x^2-30x=10

Simple and best practice solution for x^2-30x=10 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=10 equation:


Simplifying
x2 + -30x = 10

Reorder the terms:
-30x + x2 = 10

Solving
-30x + x2 = 10

Solving for variable 'x'.

Reorder the terms:
-10 + -30x + x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -30x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -30x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + -30x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -30x + x2 = 0 + 10
-30x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
-30x + x2 = 10

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 = 10 + 225

Reorder the terms:
225 + -30x + x2 = 10 + 225

Combine like terms: 10 + 225 = 235
225 + -30x + x2 = 235

Factor a perfect square on the left side:
(x + -15)(x + -15) = 235

Calculate the square root of the right side: 15.329709717

Break this problem into two subproblems by setting 
(x + -15) equal to 15.329709717 and -15.329709717.

Subproblem 1

x + -15 = 15.329709717 Simplifying x + -15 = 15.329709717 Reorder the terms: -15 + x = 15.329709717 Solving -15 + x = 15.329709717 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 = 15.329709717 + 15 Combine like terms: -15 + 15 = 0 0 + x = 15.329709717 + 15 x = 15.329709717 + 15 Combine like terms: 15.329709717 + 15 = 30.329709717 x = 30.329709717 Simplifying x = 30.329709717

Subproblem 2

x + -15 = -15.329709717 Simplifying x + -15 = -15.329709717 Reorder the terms: -15 + x = -15.329709717 Solving -15 + x = -15.329709717 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 = -15.329709717 + 15 Combine like terms: -15 + 15 = 0 0 + x = -15.329709717 + 15 x = -15.329709717 + 15 Combine like terms: -15.329709717 + 15 = -0.329709717 x = -0.329709717 Simplifying x = -0.329709717

Solution

The solution to the problem is based on the solutions from the subproblems. x = {30.329709717, -0.329709717}

See similar equations:

| 5y+3y+16=80 | | Y=8.4x+11.6 | | 8y^6+125g^3=0 | | 46+9n=3(8+n)+4 | | .33*d=7/6 | | 29=4a+16 | | 3log(base4)1/16 | | (1+x)=1.23 | | 16-(-2)= | | M=5n+6 | | a^3b^-2c^4d/a^-2b^3c^2d^-3 | | (1+x)(1+x)=1.23 | | x-5/14=8/7 | | 15(.33*n)=350 | | 8/16=×/4 | | 4n+3=43 | | 3.3x-8.71=6.8 | | 115+118+81+(2X+8)=360 | | -2r+32=-4(8r-8) | | -46+8x=79+3x | | 4/m-2=8/2 | | 81=-9p+13-8p | | 2403=27(p+15) | | 3/7x=6/5 | | 85+(6X+22)+69+(X+37)=180 | | 4(x-5)-8=-4x+8(x-8) | | H=-t^2+6t | | -5r-3=2 | | 4l+4+l=13+t | | ln(5x)-ln(4x+2)=4 | | 6*x=4+4x | | 15/10x/15/10 |

Equations solver categories