144-9f^2=0

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Solution for 144-9f^2=0 equation: 


Simplifying
144 + -9f2 = 0

Solving
144 + -9f2 = 0

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 + -9f2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -9f2 = 0 + -144
-9f2 = 0 + -144

Combine like terms: 0 + -144 = -144
-9f2 = -144

Divide each side by '-9'.
f2 = 16

Simplifying
f2 = 16

Take the square root of each side:
f = {-4, 4}

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