The figure below shows segments AC and EF which intersect at point B.

Choice 3

Step-by-step explanation:

For some reason it doesn't let me put more details

 C) ∠ A FB ≅ ∠CEB

Step-by-step explanation:

We can prove that Δ ABF ≅ ΔCBE by Angle-Angle (AA) Congruency Theorem.

∠ABF ≡ ∠CBE           Vertical Angles Postulate

∠AFB ≡ ∠CEB          Alternate Interior Angles Postulate

∠FAB ≡ ∠ECB          Alternate Interior Angles Postulate

We only need two of the above statements/reasons above to prove AA Congruency Theorem.

4v(4v+1)

Step-by-step explanation:

(4v+16v^2)

=16vv+4v

=4*4vv+4v

=4v(4v+1)