3x^2+27x-10=

Simple and best practice solution for 3x^2+27x-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 3x^2+27x-10= equation:


Simplifying
3x2 + 27x + -10 = 0

Reorder the terms:
-10 + 27x + 3x2 = 0

Solving
-10 + 27x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-3.333333333 + 9x + x2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + 9x + 3.333333333 + x2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + 9x + x2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + 9x + x2 = 0 + 3.333333333
9x + x2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
9x + x2 = 3.333333333

The x term is 9x.  Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9x + 20.25 + x2 = 3.333333333 + 20.25

Reorder the terms:
20.25 + 9x + x2 = 3.333333333 + 20.25

Combine like terms: 3.333333333 + 20.25 = 23.583333333
20.25 + 9x + x2 = 23.583333333

Factor a perfect square on the left side:
(x + 4.5)(x + 4.5) = 23.583333333

Calculate the square root of the right side: 4.856267428

Break this problem into two subproblems by setting 
(x + 4.5) equal to 4.856267428 and -4.856267428.

Subproblem 1

x + 4.5 = 4.856267428 Simplifying x + 4.5 = 4.856267428 Reorder the terms: 4.5 + x = 4.856267428 Solving 4.5 + x = 4.856267428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 4.856267428 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 4.856267428 + -4.5 x = 4.856267428 + -4.5 Combine like terms: 4.856267428 + -4.5 = 0.356267428 x = 0.356267428 Simplifying x = 0.356267428

Subproblem 2

x + 4.5 = -4.856267428 Simplifying x + 4.5 = -4.856267428 Reorder the terms: 4.5 + x = -4.856267428 Solving 4.5 + x = -4.856267428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -4.856267428 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -4.856267428 + -4.5 x = -4.856267428 + -4.5 Combine like terms: -4.856267428 + -4.5 = -9.356267428 x = -9.356267428 Simplifying x = -9.356267428

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.356267428, -9.356267428}

See similar equations:

| 3(x-2)=8-5x | | y-2=0(x-5) | | 3x-x-5=(x+2)-9 | | 25x=128 | | y-5=0(x-2) | | x+117=79 | | 166=96-y | | 6x-3y=-34 | | 7-2m=m-14 | | 9x+12=45 | | y=(x-7.7)(1-0.24) | | x-.5(x+7)=22 | | 7-2=m-14 | | 24x^3y^3z^3+16x^2y^2z+40x^2yz^2=equation | | -f=-7+6f | | x=y^2-10 | | x^2-3.3X+0.7=0 | | 24x^3y^3z^3+16x^2y^2z+40x^2yz^2= | | -4y+2=-5y | | F(x)=2cos(3x+2) | | 10x+25(x-3)=450 | | x*2-33x+0.7=0 | | 7(x-4)+3(x+6)=6x-12 | | (3x+2z)(7x-3z)= | | 2.4x=ln(139x) | | 20m^2+23m-6=0 | | -62-18=-132 | | 8x+2-5x=9x+y | | 4x-8-6x=-2-8 | | 3m^2+12m+10=3 | | 1+(x+y)i=y+3xi | | 8x+26=122 |

Equations solver categories