5j^2+55j+90=0

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Solution for 5j^2+55j+90=0 equation:


Simplifying
5j2 + 55j + 90 = 0

Reorder the terms:
90 + 55j + 5j2 = 0

Solving
90 + 55j + 5j2 = 0

Solving for variable 'j'.

Factor out the Greatest Common Factor (GCF), '5'.
5(18 + 11j + j2) = 0

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

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

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

Solution

j = {-9, -2}

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