7+x(2+x)=29

Simple and best practice solution for 7+x(2+x)=29 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 7+x(2+x)=29 equation:


Simplifying
7 + x(2 + x) = 29
7 + (2 * x + x * x) = 29
7 + (2x + x2) = 29

Solving
7 + 2x + x2 = 29

Solving for variable 'x'.

Reorder the terms:
7 + -29 + 2x + x2 = 29 + -29

Combine like terms: 7 + -29 = -22
-22 + 2x + x2 = 29 + -29

Combine like terms: 29 + -29 = 0
-22 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '22' to each side of the equation.
-22 + 2x + 22 + x2 = 0 + 22

Reorder the terms:
-22 + 22 + 2x + x2 = 0 + 22

Combine like terms: -22 + 22 = 0
0 + 2x + x2 = 0 + 22
2x + x2 = 0 + 22

Combine like terms: 0 + 22 = 22
2x + x2 = 22

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 22 + 1

Reorder the terms:
1 + 2x + x2 = 22 + 1

Combine like terms: 22 + 1 = 23
1 + 2x + x2 = 23

Factor a perfect square on the left side:
(x + 1)(x + 1) = 23

Calculate the square root of the right side: 4.795831523

Break this problem into two subproblems by setting 
(x + 1) equal to 4.795831523 and -4.795831523.

Subproblem 1

x + 1 = 4.795831523 Simplifying x + 1 = 4.795831523 Reorder the terms: 1 + x = 4.795831523 Solving 1 + x = 4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 4.795831523 + -1 Combine like terms: 1 + -1 = 0 0 + x = 4.795831523 + -1 x = 4.795831523 + -1 Combine like terms: 4.795831523 + -1 = 3.795831523 x = 3.795831523 Simplifying x = 3.795831523

Subproblem 2

x + 1 = -4.795831523 Simplifying x + 1 = -4.795831523 Reorder the terms: 1 + x = -4.795831523 Solving 1 + x = -4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -4.795831523 + -1 Combine like terms: 1 + -1 = 0 0 + x = -4.795831523 + -1 x = -4.795831523 + -1 Combine like terms: -4.795831523 + -1 = -5.795831523 x = -5.795831523 Simplifying x = -5.795831523

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.795831523, -5.795831523}

See similar equations:

| 4x+2(x-18)=30 | | -3x+4x-1-3x=1-2x+4 | | -5(2x+-7)+24=89 | | 3(x-2)+2(x+11)=-14 | | 4x^2-33x-80=0 | | 5z+2y=5 | | -0.5y=-7.3 | | y-5=-[5-y] | | 5x+5(5x-15)=105 | | 7m-4=27m+4 | | 11-x-(-3y)=8 | | 2(6+4x)=-12 | | v=3.14*64*42*42 | | b-4+2b+15=b-7+4 | | 187=19+7(13+-x) | | cos^2x-sin^2x-2sinx-cos^2x-3=0 | | 6x+4(3x-6)=174 | | (k)-(6)=-2 | | 2.7=8.3-0.7x | | 68.2x+60=5 | | 4(7x+2)=288 | | h=8 | | -sin^2-2sinx+3=0 | | -7y+3x=-21 | | 2x+30=3x | | m(-2)=-6.5x | | 3x+5(x+14)=142 | | 12.13=2g+3.67 | | 7x+2(3x-17)=44 | | -4(-1)-3=2+-1 | | 5y+2x=5 | | 9x^2+18x-12=0 |

Equations solver categories