100-8x^2=32x

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Solution for 100-8x^2=32x equation:


Simplifying
100 + -8x2 = 32x

Solving
100 + -8x2 = 32x

Solving for variable 'x'.

Reorder the terms:
100 + -32x + -8x2 = 32x + -32x

Combine like terms: 32x + -32x = 0
100 + -32x + -8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(25 + -8x + -2x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(25 + -8x + -2x2)' equal to zero and attempt to solve: Simplifying 25 + -8x + -2x2 = 0 Solving 25 + -8x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -12.5 + 4x + x2 = 0 Move the constant term to the right: Add '12.5' to each side of the equation. -12.5 + 4x + 12.5 + x2 = 0 + 12.5 Reorder the terms: -12.5 + 12.5 + 4x + x2 = 0 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + 4x + x2 = 0 + 12.5 4x + x2 = 0 + 12.5 Combine like terms: 0 + 12.5 = 12.5 4x + x2 = 12.5 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 12.5 + 4 Reorder the terms: 4 + 4x + x2 = 12.5 + 4 Combine like terms: 12.5 + 4 = 16.5 4 + 4x + x2 = 16.5 Factor a perfect square on the left side: (x + 2)(x + 2) = 16.5 Calculate the square root of the right side: 4.062019202 Break this problem into two subproblems by setting (x + 2) equal to 4.062019202 and -4.062019202.

Subproblem 1

x + 2 = 4.062019202 Simplifying x + 2 = 4.062019202 Reorder the terms: 2 + x = 4.062019202 Solving 2 + x = 4.062019202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 4.062019202 + -2 Combine like terms: 2 + -2 = 0 0 + x = 4.062019202 + -2 x = 4.062019202 + -2 Combine like terms: 4.062019202 + -2 = 2.062019202 x = 2.062019202 Simplifying x = 2.062019202

Subproblem 2

x + 2 = -4.062019202 Simplifying x + 2 = -4.062019202 Reorder the terms: 2 + x = -4.062019202 Solving 2 + x = -4.062019202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -4.062019202 + -2 Combine like terms: 2 + -2 = 0 0 + x = -4.062019202 + -2 x = -4.062019202 + -2 Combine like terms: -4.062019202 + -2 = -6.062019202 x = -6.062019202 Simplifying x = -6.062019202

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.062019202, -6.062019202}

Solution

x = {2.062019202, -6.062019202}

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