1
Answer: CSet 5: Quadratic Equations (Intermediate)
Explanation
PROBLEM
Solve: x squared - 11x + 28 = 0. Find the larger root.
Solve: x squared - 11x + 28 = 0. Find the larger root.
A.
14
B.
8
C.✓ Correct
7
D.
5
Detailed Explanation
Choice C is the best answer. Factor: (x - 4)(x - 7) = 0. Roots are 4 and 7. Larger: 7
Why others are wrong:
A: 14 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.