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Simplifying 49z2 + -14z + 1 = 0 Reorder the terms: 1 + -14z + 49z2 = 0 Solving 1 + -14z + 49z2 = 0 Solving for variable 'z'. Factor a trinomial. (1 + -7z)(1 + -7z) = 0Subproblem 1
Set the factor '(1 + -7z)' equal to zero and attempt to solve: Simplifying 1 + -7z = 0 Solving 1 + -7z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -7z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7z = 0 + -1 -7z = 0 + -1 Combine like terms: 0 + -1 = -1 -7z = -1 Divide each side by '-7'. z = 0.1428571429 Simplifying z = 0.1428571429Subproblem 2
Set the factor '(1 + -7z)' equal to zero and attempt to solve: Simplifying 1 + -7z = 0 Solving 1 + -7z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -7z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7z = 0 + -1 -7z = 0 + -1 Combine like terms: 0 + -1 = -1 -7z = -1 Divide each side by '-7'. z = 0.1428571429 Simplifying z = 0.1428571429Solution
z = {0.1428571429, 0.1428571429}
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