Set 3: Quadratic Equations (Advanced)

[Variation 1] **Choice D is the best answer.** Factor: (x - 1)(x - 8) = 0. Roots are 1 and 8. Larger: 8

Explanation

Answer: D

PROBLEM

Recent studies show that solve: x squared - 9x + 8 = 0. Find the larger root.

Solve: x squared - 9x + 8 = 0. Find the larger root.

✓ Correct

Detailed Explanation

[Variation 1] Choice D is the best answer. Factor: (x - 1)(x - 8) = 0. Roots are 1 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: 6 is incorrect because it does not satisfy the equation.