f(2a)=4-3x^2

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Solution for f(2a)=4-3x^2 equation: 


Simplifying
f(2a) = 4 + -3x2

Remove parenthesis around (2a)
f * 2a = 4 + -3x2

Reorder the terms for easier multiplication:
2f * a = 4 + -3x2

Multiply f * a
2af = 4 + -3x2

Solving
2af = 4 + -3x2

Solving for variable 'a'.

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

Divide each side by '2f'.
a = 2f-1 + -1.5f-1x2

Simplifying
a = 2f-1 + -1.5f-1x2

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