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Simplifying
4j2 + -121 = 0
Reorder the terms:
-121 + 4j2 = 0
Solving
-121 + 4j2 = 0
Solving for variable 'j'.
Move all terms containing j to the left, all other terms to the right.
Add '121' to each side of the equation.
-121 + 121 + 4j2 = 0 + 121
Combine like terms: -121 + 121 = 0
0 + 4j2 = 0 + 121
4j2 = 0 + 121
Combine like terms: 0 + 121 = 121
4j2 = 121
Divide each side by '4'.
j2 = 30.25
Simplifying
j2 = 30.25
Take the square root of each side:
j = {-5.5, 5.5}
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