f^2-144=25

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Solution for f^2-144=25 equation: 


Simplifying
f2 + -144 = 25

Reorder the terms:
-144 + f2 = 25

Solving
-144 + f2 = 25

Solving for variable 'f'.

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

Add '144' to each side of the equation.
-144 + 144 + f2 = 25 + 144

Combine like terms: -144 + 144 = 0
0 + f2 = 25 + 144
f2 = 25 + 144

Combine like terms: 25 + 144 = 169
f2 = 169

Simplifying
f2 = 169

Take the square root of each side:
f = {-13, 13}

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