(10-x)(200+4x)=224

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Solution for (10-x)(200+4x)=224 equation:


Simplifying
(10 + -1x)(200 + 4x) = 224

Multiply (10 + -1x) * (200 + 4x)
(10(200 + 4x) + -1x * (200 + 4x)) = 224
((200 * 10 + 4x * 10) + -1x * (200 + 4x)) = 224
((2000 + 40x) + -1x * (200 + 4x)) = 224
(2000 + 40x + (200 * -1x + 4x * -1x)) = 224
(2000 + 40x + (-200x + -4x2)) = 224

Combine like terms: 40x + -200x = -160x
(2000 + -160x + -4x2) = 224

Solving
2000 + -160x + -4x2 = 224

Solving for variable 'x'.

Reorder the terms:
2000 + -224 + -160x + -4x2 = 224 + -224

Combine like terms: 2000 + -224 = 1776
1776 + -160x + -4x2 = 224 + -224

Combine like terms: 224 + -224 = 0
1776 + -160x + -4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(444 + -40x + -1x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(444 + -40x + -1x2)' equal to zero and attempt to solve: Simplifying 444 + -40x + -1x2 = 0 Solving 444 + -40x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -444 + 40x + x2 = 0 Move the constant term to the right: Add '444' to each side of the equation. -444 + 40x + 444 + x2 = 0 + 444 Reorder the terms: -444 + 444 + 40x + x2 = 0 + 444 Combine like terms: -444 + 444 = 0 0 + 40x + x2 = 0 + 444 40x + x2 = 0 + 444 Combine like terms: 0 + 444 = 444 40x + x2 = 444 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 = 444 + 400 Reorder the terms: 400 + 40x + x2 = 444 + 400 Combine like terms: 444 + 400 = 844 400 + 40x + x2 = 844 Factor a perfect square on the left side: (x + 20)(x + 20) = 844 Calculate the square root of the right side: 29.051678093 Break this problem into two subproblems by setting (x + 20) equal to 29.051678093 and -29.051678093.

Subproblem 1

x + 20 = 29.051678093 Simplifying x + 20 = 29.051678093 Reorder the terms: 20 + x = 29.051678093 Solving 20 + x = 29.051678093 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 = 29.051678093 + -20 Combine like terms: 20 + -20 = 0 0 + x = 29.051678093 + -20 x = 29.051678093 + -20 Combine like terms: 29.051678093 + -20 = 9.051678093 x = 9.051678093 Simplifying x = 9.051678093

Subproblem 2

x + 20 = -29.051678093 Simplifying x + 20 = -29.051678093 Reorder the terms: 20 + x = -29.051678093 Solving 20 + x = -29.051678093 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 = -29.051678093 + -20 Combine like terms: 20 + -20 = 0 0 + x = -29.051678093 + -20 x = -29.051678093 + -20 Combine like terms: -29.051678093 + -20 = -49.051678093 x = -49.051678093 Simplifying x = -49.051678093

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.051678093, -49.051678093}

Solution

x = {9.051678093, -49.051678093}

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