f(-0.5)=4-(-0.5)2

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Solution for f(-0.5)=4-(-0.5)2 equation: 


Simplifying
f(-0.5) = 4 + -1(-0.5) * 2

Reorder the terms for easier multiplication:
-0.5f = 4 + -1(-0.5) * 2

Multiply -1 * -0.5
-0.5f = 4 + 0.5 * 2

Multiply 0.5 * 2
-0.5f = 4 + 1

Combine like terms: 4 + 1 = 5
-0.5f = 5

Solving
-0.5f = 5

Solving for variable 'f'.

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

Divide each side by '-0.5'.
f = -10

Simplifying
f = -10

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