(x+1)(x+10)=22+1

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Solution for (x+1)(x+10)=22+1 equation:


Simplifying
(x + 1)(x + 10) = 22 + 1

Reorder the terms:
(1 + x)(x + 10) = 22 + 1

Reorder the terms:
(1 + x)(10 + x) = 22 + 1

Multiply (1 + x) * (10 + x)
(1(10 + x) + x(10 + x)) = 22 + 1
((10 * 1 + x * 1) + x(10 + x)) = 22 + 1
((10 + 1x) + x(10 + x)) = 22 + 1
(10 + 1x + (10 * x + x * x)) = 22 + 1
(10 + 1x + (10x + x2)) = 22 + 1

Combine like terms: 1x + 10x = 11x
(10 + 11x + x2) = 22 + 1

Combine like terms: 22 + 1 = 23
10 + 11x + x2 = 23

Solving
10 + 11x + x2 = 23

Solving for variable 'x'.

Reorder the terms:
10 + -23 + 11x + x2 = 23 + -23

Combine like terms: 10 + -23 = -13
-13 + 11x + x2 = 23 + -23

Combine like terms: 23 + -23 = 0
-13 + 11x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '13' to each side of the equation.
-13 + 11x + 13 + x2 = 0 + 13

Reorder the terms:
-13 + 13 + 11x + x2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 11x + x2 = 0 + 13
11x + x2 = 0 + 13

Combine like terms: 0 + 13 = 13
11x + x2 = 13

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = 13 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 13 + 30.25

Combine like terms: 13 + 30.25 = 43.25
30.25 + 11x + x2 = 43.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 43.25

Calculate the square root of the right side: 6.576473219

Break this problem into two subproblems by setting 
(x + 5.5) equal to 6.576473219 and -6.576473219.

Subproblem 1

x + 5.5 = 6.576473219 Simplifying x + 5.5 = 6.576473219 Reorder the terms: 5.5 + x = 6.576473219 Solving 5.5 + x = 6.576473219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 6.576473219 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 6.576473219 + -5.5 x = 6.576473219 + -5.5 Combine like terms: 6.576473219 + -5.5 = 1.076473219 x = 1.076473219 Simplifying x = 1.076473219

Subproblem 2

x + 5.5 = -6.576473219 Simplifying x + 5.5 = -6.576473219 Reorder the terms: 5.5 + x = -6.576473219 Solving 5.5 + x = -6.576473219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -6.576473219 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -6.576473219 + -5.5 x = -6.576473219 + -5.5 Combine like terms: -6.576473219 + -5.5 = -12.076473219 x = -12.076473219 Simplifying x = -12.076473219

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.076473219, -12.076473219}

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