2x^2-6x=70

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Solution for 2x^2-6x=70 equation:


Simplifying
2x2 + -6x = 70

Reorder the terms:
-6x + 2x2 = 70

Solving
-6x + 2x2 = 70

Solving for variable 'x'.

Reorder the terms:
-70 + -6x + 2x2 = 70 + -70

Combine like terms: 70 + -70 = 0
-70 + -6x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-35 + -3x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-35 + -3x + x2)' equal to zero and attempt to solve: Simplifying -35 + -3x + x2 = 0 Solving -35 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '35' to each side of the equation. -35 + -3x + 35 + x2 = 0 + 35 Reorder the terms: -35 + 35 + -3x + x2 = 0 + 35 Combine like terms: -35 + 35 = 0 0 + -3x + x2 = 0 + 35 -3x + x2 = 0 + 35 Combine like terms: 0 + 35 = 35 -3x + x2 = 35 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 35 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 35 + 2.25 Combine like terms: 35 + 2.25 = 37.25 2.25 + -3x + x2 = 37.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 37.25 Calculate the square root of the right side: 6.103277808 Break this problem into two subproblems by setting (x + -1.5) equal to 6.103277808 and -6.103277808.

Subproblem 1

x + -1.5 = 6.103277808 Simplifying x + -1.5 = 6.103277808 Reorder the terms: -1.5 + x = 6.103277808 Solving -1.5 + x = 6.103277808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 6.103277808 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 6.103277808 + 1.5 x = 6.103277808 + 1.5 Combine like terms: 6.103277808 + 1.5 = 7.603277808 x = 7.603277808 Simplifying x = 7.603277808

Subproblem 2

x + -1.5 = -6.103277808 Simplifying x + -1.5 = -6.103277808 Reorder the terms: -1.5 + x = -6.103277808 Solving -1.5 + x = -6.103277808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -6.103277808 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -6.103277808 + 1.5 x = -6.103277808 + 1.5 Combine like terms: -6.103277808 + 1.5 = -4.603277808 x = -4.603277808 Simplifying x = -4.603277808

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.603277808, -4.603277808}

Solution

x = {7.603277808, -4.603277808}

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