2x^2+80x+2000=22400

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Solution for 2x^2+80x+2000=22400 equation:


Simplifying
2x2 + 80x + 2000 = 22400

Reorder the terms:
2000 + 80x + 2x2 = 22400

Solving
2000 + 80x + 2x2 = 22400

Solving for variable 'x'.

Reorder the terms:
2000 + -22400 + 80x + 2x2 = 22400 + -22400

Combine like terms: 2000 + -22400 = -20400
-20400 + 80x + 2x2 = 22400 + -22400

Combine like terms: 22400 + -22400 = 0
-20400 + 80x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-10200 + 40x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-10200 + 40x + x2)' equal to zero and attempt to solve: Simplifying -10200 + 40x + x2 = 0 Solving -10200 + 40x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '10200' to each side of the equation. -10200 + 40x + 10200 + x2 = 0 + 10200 Reorder the terms: -10200 + 10200 + 40x + x2 = 0 + 10200 Combine like terms: -10200 + 10200 = 0 0 + 40x + x2 = 0 + 10200 40x + x2 = 0 + 10200 Combine like terms: 0 + 10200 = 10200 40x + x2 = 10200 The x term is 40x. Take half its coefficient (20). Square it (400) and add it to both sides. Add '400' to each side of the equation. 40x + 400 + x2 = 10200 + 400 Reorder the terms: 400 + 40x + x2 = 10200 + 400 Combine like terms: 10200 + 400 = 10600 400 + 40x + x2 = 10600 Factor a perfect square on the left side: (x + 20)(x + 20) = 10600 Calculate the square root of the right side: 102.95630141 Break this problem into two subproblems by setting (x + 20) equal to 102.95630141 and -102.95630141.

Subproblem 1

x + 20 = 102.95630141 Simplifying x + 20 = 102.95630141 Reorder the terms: 20 + x = 102.95630141 Solving 20 + x = 102.95630141 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = 102.95630141 + -20 Combine like terms: 20 + -20 = 0 0 + x = 102.95630141 + -20 x = 102.95630141 + -20 Combine like terms: 102.95630141 + -20 = 82.95630141 x = 82.95630141 Simplifying x = 82.95630141

Subproblem 2

x + 20 = -102.95630141 Simplifying x + 20 = -102.95630141 Reorder the terms: 20 + x = -102.95630141 Solving 20 + x = -102.95630141 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = -102.95630141 + -20 Combine like terms: 20 + -20 = 0 0 + x = -102.95630141 + -20 x = -102.95630141 + -20 Combine like terms: -102.95630141 + -20 = -122.95630141 x = -122.95630141 Simplifying x = -122.95630141

Solution

The solution to the problem is based on the solutions from the subproblems. x = {82.95630141, -122.95630141}

Solution

x = {82.95630141, -122.95630141}

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