x^2+10x+21=1024

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Solution for x^2+10x+21=1024 equation:


Simplifying
x2 + 10x + 21 = 1024

Reorder the terms:
21 + 10x + x2 = 1024

Solving
21 + 10x + x2 = 1024

Solving for variable 'x'.

Reorder the terms:
21 + -1024 + 10x + x2 = 1024 + -1024

Combine like terms: 21 + -1024 = -1003
-1003 + 10x + x2 = 1024 + -1024

Combine like terms: 1024 + -1024 = 0
-1003 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1003' to each side of the equation.
-1003 + 10x + 1003 + x2 = 0 + 1003

Reorder the terms:
-1003 + 1003 + 10x + x2 = 0 + 1003

Combine like terms: -1003 + 1003 = 0
0 + 10x + x2 = 0 + 1003
10x + x2 = 0 + 1003

Combine like terms: 0 + 1003 = 1003
10x + x2 = 1003

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 1003 + 25

Reorder the terms:
25 + 10x + x2 = 1003 + 25

Combine like terms: 1003 + 25 = 1028
25 + 10x + x2 = 1028

Factor a perfect square on the left side:
(x + 5)(x + 5) = 1028

Calculate the square root of the right side: 32.062439084

Break this problem into two subproblems by setting 
(x + 5) equal to 32.062439084 and -32.062439084.

Subproblem 1

x + 5 = 32.062439084 Simplifying x + 5 = 32.062439084 Reorder the terms: 5 + x = 32.062439084 Solving 5 + x = 32.062439084 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 32.062439084 + -5 Combine like terms: 5 + -5 = 0 0 + x = 32.062439084 + -5 x = 32.062439084 + -5 Combine like terms: 32.062439084 + -5 = 27.062439084 x = 27.062439084 Simplifying x = 27.062439084

Subproblem 2

x + 5 = -32.062439084 Simplifying x + 5 = -32.062439084 Reorder the terms: 5 + x = -32.062439084 Solving 5 + x = -32.062439084 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -32.062439084 + -5 Combine like terms: 5 + -5 = 0 0 + x = -32.062439084 + -5 x = -32.062439084 + -5 Combine like terms: -32.062439084 + -5 = -37.062439084 x = -37.062439084 Simplifying x = -37.062439084

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.062439084, -37.062439084}

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