10x^2+4x-10=0

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Solution for 10x^2+4x-10=0 equation:


Simplifying
10x2 + 4x + -10 = 0

Reorder the terms:
-10 + 4x + 10x2 = 0

Solving
-10 + 4x + 10x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-5 + 2x + 5x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + 2x + 5x2)' equal to zero and attempt to solve: Simplifying -5 + 2x + 5x2 = 0 Solving -5 + 2x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -1 + 0.4x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 0.4x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 0.4x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 0.4x + x2 = 0 + 1 0.4x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 0.4x + x2 = 1 The x term is 0.4x. Take half its coefficient (0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. 0.4x + 0.04 + x2 = 1 + 0.04 Reorder the terms: 0.04 + 0.4x + x2 = 1 + 0.04 Combine like terms: 1 + 0.04 = 1.04 0.04 + 0.4x + x2 = 1.04 Factor a perfect square on the left side: (x + 0.2)(x + 0.2) = 1.04 Calculate the square root of the right side: 1.019803903 Break this problem into two subproblems by setting (x + 0.2) equal to 1.019803903 and -1.019803903.

Subproblem 1

x + 0.2 = 1.019803903 Simplifying x + 0.2 = 1.019803903 Reorder the terms: 0.2 + x = 1.019803903 Solving 0.2 + x = 1.019803903 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 1.019803903 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 1.019803903 + -0.2 x = 1.019803903 + -0.2 Combine like terms: 1.019803903 + -0.2 = 0.819803903 x = 0.819803903 Simplifying x = 0.819803903

Subproblem 2

x + 0.2 = -1.019803903 Simplifying x + 0.2 = -1.019803903 Reorder the terms: 0.2 + x = -1.019803903 Solving 0.2 + x = -1.019803903 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -1.019803903 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -1.019803903 + -0.2 x = -1.019803903 + -0.2 Combine like terms: -1.019803903 + -0.2 = -1.219803903 x = -1.219803903 Simplifying x = -1.219803903

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.819803903, -1.219803903}

Solution

x = {0.819803903, -1.219803903}

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