4j^2-25=0

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Solution for 4j^2-25=0 equation: 


Simplifying
4j2 + -25 = 0

Reorder the terms:
-25 + 4j2 = 0

Solving
-25 + 4j2 = 0

Solving for variable 'j'.

Move all terms containing j to the left, all other terms to the right.

Add '25' to each side of the equation.
-25 + 25 + 4j2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 4j2 = 0 + 25
4j2 = 0 + 25

Combine like terms: 0 + 25 = 25
4j2 = 25

Divide each side by '4'.
j2 = 6.25

Simplifying
j2 = 6.25

Take the square root of each side:
j = {-2.5, 2.5}

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