Multiply to get rid of the parenthesis.
2f - 24 = 25
Add 24 to both sides.
2f = 49
Divide both sides by 2.
f = 28.5
Unless you have a typo somewhere, none of the alternatives fit.
Solve for f.
(f - 12)2 = 25
A. f = 5 or f = −5
B. f = 12 or f = −12
C. f = 17 or f = 7
D. no solution
2 answers
Looks like he meant
(f-12)^2 = 25
so,
f-12 = ±5
f = 12±5
f = 17 or 7
(f-12)^2 = 25
so,
f-12 = ±5
f = 12±5
f = 17 or 7