5x^2-40x-50=0

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Solution for 5x^2-40x-50=0 equation:


Simplifying
5x2 + -40x + -50 = 0

Reorder the terms:
-50 + -40x + 5x2 = 0

Solving
-50 + -40x + 5x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-10 + -8x + x2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-10 + -8x + x2)' equal to zero and attempt to solve: Simplifying -10 + -8x + x2 = 0 Solving -10 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + -8x + 10 + x2 = 0 + 10 Reorder the terms: -10 + 10 + -8x + x2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -8x + x2 = 0 + 10 -8x + x2 = 0 + 10 Combine like terms: 0 + 10 = 10 -8x + x2 = 10 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 10 + 16 Reorder the terms: 16 + -8x + x2 = 10 + 16 Combine like terms: 10 + 16 = 26 16 + -8x + x2 = 26 Factor a perfect square on the left side: (x + -4)(x + -4) = 26 Calculate the square root of the right side: 5.099019514 Break this problem into two subproblems by setting (x + -4) equal to 5.099019514 and -5.099019514.

Subproblem 1

x + -4 = 5.099019514 Simplifying x + -4 = 5.099019514 Reorder the terms: -4 + x = 5.099019514 Solving -4 + x = 5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 5.099019514 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.099019514 + 4 x = 5.099019514 + 4 Combine like terms: 5.099019514 + 4 = 9.099019514 x = 9.099019514 Simplifying x = 9.099019514

Subproblem 2

x + -4 = -5.099019514 Simplifying x + -4 = -5.099019514 Reorder the terms: -4 + x = -5.099019514 Solving -4 + x = -5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -5.099019514 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.099019514 + 4 x = -5.099019514 + 4 Combine like terms: -5.099019514 + 4 = -1.099019514 x = -1.099019514 Simplifying x = -1.099019514

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.099019514, -1.099019514}

Solution

x = {9.099019514, -1.099019514}

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