3x^2=-9.6x-5.5

Simple and best practice solution for 3x^2=-9.6x-5.5 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 3x^2=-9.6x-5.5 equation:


Simplifying
3x2 = -9.6x + -5.5

Reorder the terms:
3x2 = -5.5 + -9.6x

Solving
3x2 = -5.5 + -9.6x

Solving for variable 'x'.

Reorder the terms:
5.5 + 9.6x + 3x2 = -5.5 + -9.6x + 5.5 + 9.6x

Reorder the terms:
5.5 + 9.6x + 3x2 = -5.5 + 5.5 + -9.6x + 9.6x

Combine like terms: -5.5 + 5.5 = 0.0
5.5 + 9.6x + 3x2 = 0.0 + -9.6x + 9.6x
5.5 + 9.6x + 3x2 = -9.6x + 9.6x

Combine like terms: -9.6x + 9.6x = 0.0
5.5 + 9.6x + 3x2 = 0.0

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

Divide each side by '3'.
1.833333333 + 3.2x + x2 = 0.0

Move the constant term to the right:

Add '-1.833333333' to each side of the equation.
1.833333333 + 3.2x + -1.833333333 + x2 = 0.0 + -1.833333333

Reorder the terms:
1.833333333 + -1.833333333 + 3.2x + x2 = 0.0 + -1.833333333

Combine like terms: 1.833333333 + -1.833333333 = 0.000000000
0.000000000 + 3.2x + x2 = 0.0 + -1.833333333
3.2x + x2 = 0.0 + -1.833333333

Combine like terms: 0.0 + -1.833333333 = -1.833333333
3.2x + x2 = -1.833333333

The x term is 3.2x.  Take half its coefficient (1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
3.2x + 2.56 + x2 = -1.833333333 + 2.56

Reorder the terms:
2.56 + 3.2x + x2 = -1.833333333 + 2.56

Combine like terms: -1.833333333 + 2.56 = 0.726666667
2.56 + 3.2x + x2 = 0.726666667

Factor a perfect square on the left side:
(x + 1.6)(x + 1.6) = 0.726666667

Calculate the square root of the right side: 0.852447457

Break this problem into two subproblems by setting 
(x + 1.6) equal to 0.852447457 and -0.852447457.

Subproblem 1

x + 1.6 = 0.852447457 Simplifying x + 1.6 = 0.852447457 Reorder the terms: 1.6 + x = 0.852447457 Solving 1.6 + x = 0.852447457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + x = 0.852447457 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + x = 0.852447457 + -1.6 x = 0.852447457 + -1.6 Combine like terms: 0.852447457 + -1.6 = -0.747552543 x = -0.747552543 Simplifying x = -0.747552543

Subproblem 2

x + 1.6 = -0.852447457 Simplifying x + 1.6 = -0.852447457 Reorder the terms: 1.6 + x = -0.852447457 Solving 1.6 + x = -0.852447457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + x = -0.852447457 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + x = -0.852447457 + -1.6 x = -0.852447457 + -1.6 Combine like terms: -0.852447457 + -1.6 = -2.452447457 x = -2.452447457 Simplifying x = -2.452447457

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.747552543, -2.452447457}

See similar equations:

| ln(x)+ln(x+4)=ln(33/4) | | -5.6x^2+117x+1280=0 | | 3z-(-2.7-10z)=15.3+16z | | -5.6x^2+117+1280=0 | | 3x+2y=1500 | | -1.5a+06b-2.5c= | | x/2-8=14 | | x/2-8=15 | | 0.2x+7.4=6.1 | | y=1/3*0.3333+3 | | 8(2a-b)-6(3b-5a)= | | -1.5a+0.6b-2.5c= | | 0.40xC=400 | | 17/3=8x+2/3(-9x-2) | | 1/7Y=6 | | 4-5/y=2z | | x^2-5/3+1/3=0 | | Y/7=Y/8-1 | | 3Z=1/8 | | (-a-2b+3)7ab= | | 0=x^2-5/8+1/3 | | -1(-4)(-3)(1)= | | x^3=540 | | -2.4k-(-3-6k)=19-20.4k | | Y=-8/20x | | 2-5x=8x+8 | | -2+22y/3=-1/3(-y-3) | | 2x+19=6x-9 | | 9.52+(-2.36)+0.92= | | 3.33x-2=-4(x+7) | | 2x^2+38x+96=0 | | 2x^2+38+96=0 |

Equations solver categories