4
QuizMultiple Choice
Unit Test — Unit test
Question 4 • EA Academy Algebra I
Zacharias is using the quadratic formula to solve the equation 0 = –2x2 + 5x – 3. He begins by substituting as shown.Quadratic formula: x = Substitution:
Answer
A
The –5 should be 5.B
The 52 should be –52.C
The 2 in the numerator should be –2.D
The 2 in the denominator should be –2.