x^2+6x-3=

Simple and best practice solution for x^2+6x-3= 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+6x-3= equation:


Simplifying
x2 + 6x + -3 = 0

Reorder the terms:
-3 + 6x + x2 = 0

Solving
-3 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 6x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 6x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 6x + x2 = 0 + 3
6x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
6x + x2 = 3

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 3 + 9

Reorder the terms:
9 + 6x + x2 = 3 + 9

Combine like terms: 3 + 9 = 12
9 + 6x + x2 = 12

Factor a perfect square on the left side:
(x + 3)(x + 3) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(x + 3) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + 3 = 3.464101615 Simplifying x + 3 = 3.464101615 Reorder the terms: 3 + x = 3.464101615 Solving 3 + x = 3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 3.464101615 + -3 Combine like terms: 3 + -3 = 0 0 + x = 3.464101615 + -3 x = 3.464101615 + -3 Combine like terms: 3.464101615 + -3 = 0.464101615 x = 0.464101615 Simplifying x = 0.464101615

Subproblem 2

x + 3 = -3.464101615 Simplifying x + 3 = -3.464101615 Reorder the terms: 3 + x = -3.464101615 Solving 3 + x = -3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -3.464101615 + -3 Combine like terms: 3 + -3 = 0 0 + x = -3.464101615 + -3 x = -3.464101615 + -3 Combine like terms: -3.464101615 + -3 = -6.464101615 x = -6.464101615 Simplifying x = -6.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.464101615, -6.464101615}

See similar equations:

| x^5+4x^3+x^2+4=0 | | -9.4(-6)= | | 4/x+7=6/x | | y+3:2-(1-y)=3,5 | | 3x-11+2x=5x-4 | | 1/2k-(k+1/4)=1/8(k+1) | | -18=2v-12 | | 9y-15=-5y-15 | | -16x^3-8x^2= | | 5u+14=3u | | 4.5q-5.4-3.7q=0.2q-4.3 | | 12a^2-10a=2a | | X^2-y^2=91 | | 3x-5/x=2 | | 6y=138 | | 9=23-7b | | 9(n-7)-(1-n)= | | 6(3+n)= | | 9(x-4)=8x-27 | | 21=8a-3 | | 4a+3b=38 | | x=4x3+6/2 | | 3*x=2*x^2-9 | | 5s+8t=58 | | 4x+3=4x+5 | | 2s+4t=28 | | x=2b+4a | | 10p+12q=68 | | (2x-1)*(x-2)=(1-2x)*(x+2) | | x=3+2/5 | | 10006x=536+23.6 | | 4+3*x=2*x^2-5 |

Equations solver categories