On a recent homework assignment, Lilah needed to solve this equation completely. She incorrectly wrote "vequals4." Solve the equation. What error did Lilah make?
v^2 = 16
Taking the square root of both sides, we get:
v = ±4
Therefore, the correct answer is v = ±4.
Lilah's error was not including both the positive and negative solutions when taking the square root of both sides.