4
Answer: CSet 2: Quadratic Equations (Advanced)
Explanation
PROBLEM
Solve: x squared - 11x + 30 = 0. Find the larger root.
Solve: x squared - 11x + 30 = 0. Find the larger root.
A.
5
B.
4
C.✓ Correct
6
D.
12
Detailed Explanation
Choice C is the best answer. Factor: (x - 6)(x - 5) = 0. Roots are 6 and 5. Larger: 6
Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
D: 12 is incorrect because it does not satisfy the equation.