2z^2+22z=-10

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Solution for 2z^2+22z=-10 equation:


Simplifying
2z2 + 22z = -10

Reorder the terms:
22z + 2z2 = -10

Solving
22z + 2z2 = -10

Solving for variable 'z'.

Reorder the terms:
10 + 22z + 2z2 = -10 + 10

Combine like terms: -10 + 10 = 0
10 + 22z + 2z2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(5 + 11z + z2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(5 + 11z + z2)' equal to zero and attempt to solve: Simplifying 5 + 11z + z2 = 0 Solving 5 + 11z + z2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + 11z + -5 + z2 = 0 + -5 Reorder the terms: 5 + -5 + 11z + z2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 11z + z2 = 0 + -5 11z + z2 = 0 + -5 Combine like terms: 0 + -5 = -5 11z + z2 = -5 The z term is 11z. Take half its coefficient (5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. 11z + 30.25 + z2 = -5 + 30.25 Reorder the terms: 30.25 + 11z + z2 = -5 + 30.25 Combine like terms: -5 + 30.25 = 25.25 30.25 + 11z + z2 = 25.25 Factor a perfect square on the left side: (z + 5.5)(z + 5.5) = 25.25 Calculate the square root of the right side: 5.024937811 Break this problem into two subproblems by setting (z + 5.5) equal to 5.024937811 and -5.024937811.

Subproblem 1

z + 5.5 = 5.024937811 Simplifying z + 5.5 = 5.024937811 Reorder the terms: 5.5 + z = 5.024937811 Solving 5.5 + z = 5.024937811 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + z = 5.024937811 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + z = 5.024937811 + -5.5 z = 5.024937811 + -5.5 Combine like terms: 5.024937811 + -5.5 = -0.475062189 z = -0.475062189 Simplifying z = -0.475062189

Subproblem 2

z + 5.5 = -5.024937811 Simplifying z + 5.5 = -5.024937811 Reorder the terms: 5.5 + z = -5.024937811 Solving 5.5 + z = -5.024937811 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + z = -5.024937811 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + z = -5.024937811 + -5.5 z = -5.024937811 + -5.5 Combine like terms: -5.024937811 + -5.5 = -10.524937811 z = -10.524937811 Simplifying z = -10.524937811

Solution

The solution to the problem is based on the solutions from the subproblems. z = {-0.475062189, -10.524937811}

Solution

z = {-0.475062189, -10.524937811}

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