10z^2+49z+18=0

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Solution for 10z^2+49z+18=0 equation:


Simplifying
10z2 + 49z + 18 = 0

Reorder the terms:
18 + 49z + 10z2 = 0

Solving
18 + 49z + 10z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(9 + 2z)(2 + 5z) = 0

Subproblem 1

Set the factor '(9 + 2z)' equal to zero and attempt to solve: Simplifying 9 + 2z = 0 Solving 9 + 2z = 0 Move all terms containing z to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2z = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2z = 0 + -9 2z = 0 + -9 Combine like terms: 0 + -9 = -9 2z = -9 Divide each side by '2'. z = -4.5 Simplifying z = -4.5

Subproblem 2

Set the factor '(2 + 5z)' equal to zero and attempt to solve: Simplifying 2 + 5z = 0 Solving 2 + 5z = 0 Move all terms containing z to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 5z = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5z = 0 + -2 5z = 0 + -2 Combine like terms: 0 + -2 = -2 5z = -2 Divide each side by '5'. z = -0.4 Simplifying z = -0.4

Solution

z = {-4.5, -0.4}

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