98z^2+84z+18=0

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Solution for 98z^2+84z+18=0 equation:


Simplifying
98z2 + 84z + 18 = 0

Reorder the terms:
18 + 84z + 98z2 = 0

Solving
18 + 84z + 98z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 42z + 49z2) = 0

Factor a trinomial.
2((3 + 7z)(3 + 7z)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(3 + 7z)' equal to zero and attempt to solve: Simplifying 3 + 7z = 0 Solving 3 + 7z = 0 Move all terms containing z to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7z = 0 + -3 7z = 0 + -3 Combine like terms: 0 + -3 = -3 7z = -3 Divide each side by '7'. z = -0.4285714286 Simplifying z = -0.4285714286

Subproblem 2

Set the factor '(3 + 7z)' equal to zero and attempt to solve: Simplifying 3 + 7z = 0 Solving 3 + 7z = 0 Move all terms containing z to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7z = 0 + -3 7z = 0 + -3 Combine like terms: 0 + -3 = -3 7z = -3 Divide each side by '7'. z = -0.4285714286 Simplifying z = -0.4285714286

Solution

z = {-0.4285714286, -0.4285714286}

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