3
Answer: DSet 1: Quadratic Equations (Intermediate)
Explanation
PROBLEM
Solve: x squared - 10x + 16 = 0. Find the larger root.
Solve: x squared - 10x + 16 = 0. Find the larger root.
A.
10
B.
16
C.
9
D.✓ Correct
8
Detailed Explanation
Choice D is the best answer. Factor: (x - 2)(x - 8) = 0. Roots are 2 and 8. Larger: 8
Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
B: 16 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.