0=4x^2+22x-54

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Solution for 0=4x^2+22x-54 equation:


Simplifying
0 = 4x2 + 22x + -54

Reorder the terms:
0 = -54 + 22x + 4x2

Solving
0 = -54 + 22x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 54 = 54
54 + -22x + -4x2 = -54 + 22x + 4x2 + 54 + -22x + -4x2

Reorder the terms:
54 + -22x + -4x2 = -54 + 54 + 22x + -22x + 4x2 + -4x2

Combine like terms: -54 + 54 = 0
54 + -22x + -4x2 = 0 + 22x + -22x + 4x2 + -4x2
54 + -22x + -4x2 = 22x + -22x + 4x2 + -4x2

Combine like terms: 22x + -22x = 0
54 + -22x + -4x2 = 0 + 4x2 + -4x2
54 + -22x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
54 + -22x + -4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(27 + -11x + -2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(27 + -11x + -2x2)' equal to zero and attempt to solve: Simplifying 27 + -11x + -2x2 = 0 Solving 27 + -11x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -13.5 + 5.5x + x2 = 0 Move the constant term to the right: Add '13.5' to each side of the equation. -13.5 + 5.5x + 13.5 + x2 = 0 + 13.5 Reorder the terms: -13.5 + 13.5 + 5.5x + x2 = 0 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + 5.5x + x2 = 0 + 13.5 5.5x + x2 = 0 + 13.5 Combine like terms: 0 + 13.5 = 13.5 5.5x + x2 = 13.5 The x term is 5.5x. Take half its coefficient (2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. 5.5x + 7.5625 + x2 = 13.5 + 7.5625 Reorder the terms: 7.5625 + 5.5x + x2 = 13.5 + 7.5625 Combine like terms: 13.5 + 7.5625 = 21.0625 7.5625 + 5.5x + x2 = 21.0625 Factor a perfect square on the left side: (x + 2.75)(x + 2.75) = 21.0625 Calculate the square root of the right side: 4.589389938 Break this problem into two subproblems by setting (x + 2.75) equal to 4.589389938 and -4.589389938.

Subproblem 1

x + 2.75 = 4.589389938 Simplifying x + 2.75 = 4.589389938 Reorder the terms: 2.75 + x = 4.589389938 Solving 2.75 + x = 4.589389938 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + x = 4.589389938 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = 4.589389938 + -2.75 x = 4.589389938 + -2.75 Combine like terms: 4.589389938 + -2.75 = 1.839389938 x = 1.839389938 Simplifying x = 1.839389938

Subproblem 2

x + 2.75 = -4.589389938 Simplifying x + 2.75 = -4.589389938 Reorder the terms: 2.75 + x = -4.589389938 Solving 2.75 + x = -4.589389938 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + x = -4.589389938 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = -4.589389938 + -2.75 x = -4.589389938 + -2.75 Combine like terms: -4.589389938 + -2.75 = -7.339389938 x = -7.339389938 Simplifying x = -7.339389938

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.839389938, -7.339389938}

Solution

x = {1.839389938, -7.339389938}

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