11x^2+8+30x=0

Simple and best practice solution for 11x^2+8+30x=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 11x^2+8+30x=0 equation:


Simplifying
11x2 + 8 + 30x = 0

Reorder the terms:
8 + 30x + 11x2 = 0

Solving
8 + 30x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
0.7272727273 + 2.727272727x + x2 = 0

Move the constant term to the right:

Add '-0.7272727273' to each side of the equation.
0.7272727273 + 2.727272727x + -0.7272727273 + x2 = 0 + -0.7272727273

Reorder the terms:
0.7272727273 + -0.7272727273 + 2.727272727x + x2 = 0 + -0.7272727273

Combine like terms: 0.7272727273 + -0.7272727273 = 0.0000000000
0.0000000000 + 2.727272727x + x2 = 0 + -0.7272727273
2.727272727x + x2 = 0 + -0.7272727273

Combine like terms: 0 + -0.7272727273 = -0.7272727273
2.727272727x + x2 = -0.7272727273

The x term is 2.727272727x.  Take half its coefficient (1.363636364).
Square it (1.859504133) and add it to both sides.

Add '1.859504133' to each side of the equation.
2.727272727x + 1.859504133 + x2 = -0.7272727273 + 1.859504133

Reorder the terms:
1.859504133 + 2.727272727x + x2 = -0.7272727273 + 1.859504133

Combine like terms: -0.7272727273 + 1.859504133 = 1.1322314057
1.859504133 + 2.727272727x + x2 = 1.1322314057

Factor a perfect square on the left side:
(x + 1.363636364)(x + 1.363636364) = 1.1322314057

Calculate the square root of the right side: 1.064063629

Break this problem into two subproblems by setting 
(x + 1.363636364) equal to 1.064063629 and -1.064063629.

Subproblem 1

x + 1.363636364 = 1.064063629 Simplifying x + 1.363636364 = 1.064063629 Reorder the terms: 1.363636364 + x = 1.064063629 Solving 1.363636364 + x = 1.064063629 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.363636364' to each side of the equation. 1.363636364 + -1.363636364 + x = 1.064063629 + -1.363636364 Combine like terms: 1.363636364 + -1.363636364 = 0.000000000 0.000000000 + x = 1.064063629 + -1.363636364 x = 1.064063629 + -1.363636364 Combine like terms: 1.064063629 + -1.363636364 = -0.299572735 x = -0.299572735 Simplifying x = -0.299572735

Subproblem 2

x + 1.363636364 = -1.064063629 Simplifying x + 1.363636364 = -1.064063629 Reorder the terms: 1.363636364 + x = -1.064063629 Solving 1.363636364 + x = -1.064063629 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.363636364' to each side of the equation. 1.363636364 + -1.363636364 + x = -1.064063629 + -1.363636364 Combine like terms: 1.363636364 + -1.363636364 = 0.000000000 0.000000000 + x = -1.064063629 + -1.363636364 x = -1.064063629 + -1.363636364 Combine like terms: -1.064063629 + -1.363636364 = -2.427699993 x = -2.427699993 Simplifying x = -2.427699993

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.299572735, -2.427699993}

See similar equations:

| 9m^2n^2+7m^2-6n^2-4m^2n^2+2mn= | | 6y-4+6y-4=y | | -4x+24=-7(X-3) | | -7x^2+8-30x=0 | | 0=(-4)x^2-12x-2 | | 5+X^2-5-X^2=17 | | 2(y+1)=3(2y-5) | | 7009.2336=2*3.14*r^2+2*3.14*r*64.4 | | 3=3(W-4)-6w | | 3=3x-3y | | (X-5)(X+23)=0 | | 25-(-5x)=50 | | 8U-6U=12 | | (1-u)(5u+6)=0 | | 5f+3=17 | | 7(W-1)=-5W+5 | | x^2+y^2+4y=5 | | 28-55+(85+65)=5 | | 30x+6y=48 | | DE=5x-3x | | (U-2)(u+8)= | | 9(x-5)=81 | | -5W+3=-2(W-6) | | 7(t+8)=14 | | Sqrt(2x)-12=0 | | -8V+2(V+8)=22 | | -5(u-5)=-3U+15 | | 5(x-8)-7x=-26 | | 3x-14y=-27 | | 4(c-5)=40 | | 12x+1808y=10 | | 3x-2(3-x)=4 |

Equations solver categories