4x^2+17x-22=0

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Solution for 4x^2+17x-22=0 equation:


Simplifying
4x2 + 17x + -22 = 0

Reorder the terms:
-22 + 17x + 4x2 = 0

Solving
-22 + 17x + 4x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
-5.5 + 4.25x + x2 = 0

Move the constant term to the right:

Add '5.5' to each side of the equation.
-5.5 + 4.25x + 5.5 + x2 = 0 + 5.5

Reorder the terms:
-5.5 + 5.5 + 4.25x + x2 = 0 + 5.5

Combine like terms: -5.5 + 5.5 = 0.0
0.0 + 4.25x + x2 = 0 + 5.5
4.25x + x2 = 0 + 5.5

Combine like terms: 0 + 5.5 = 5.5
4.25x + x2 = 5.5

The x term is 4.25x.  Take half its coefficient (2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
4.25x + 4.515625 + x2 = 5.5 + 4.515625

Reorder the terms:
4.515625 + 4.25x + x2 = 5.5 + 4.515625

Combine like terms: 5.5 + 4.515625 = 10.015625
4.515625 + 4.25x + x2 = 10.015625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 10.015625

Calculate the square root of the right side: 3.164747225

Break this problem into two subproblems by setting 
(x + 2.125) equal to 3.164747225 and -3.164747225.

Subproblem 1

x + 2.125 = 3.164747225 Simplifying x + 2.125 = 3.164747225 Reorder the terms: 2.125 + x = 3.164747225 Solving 2.125 + x = 3.164747225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = 3.164747225 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 3.164747225 + -2.125 x = 3.164747225 + -2.125 Combine like terms: 3.164747225 + -2.125 = 1.039747225 x = 1.039747225 Simplifying x = 1.039747225

Subproblem 2

x + 2.125 = -3.164747225 Simplifying x + 2.125 = -3.164747225 Reorder the terms: 2.125 + x = -3.164747225 Solving 2.125 + x = -3.164747225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = -3.164747225 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -3.164747225 + -2.125 x = -3.164747225 + -2.125 Combine like terms: -3.164747225 + -2.125 = -5.289747225 x = -5.289747225 Simplifying x = -5.289747225

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.039747225, -5.289747225}

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