Set 4: Quadratic Equations (Intermediate)

[Variation 2] **Choice A is the best answer.** Factor: (x - 1)(x - 8) = 0. Roots are 1 and 8. Larger: 8

Explanation

Answer: A

PROBLEM

Intriguingly, solve: x squared - 9x + 8 = 0. Find the larger root.

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

✓ Correct

Detailed Explanation

[Variation 2] Choice A is the best answer. Factor: (x - 1)(x - 8) = 0. Roots are 1 and 8. Larger: 8

Why others are wrong:

B: 9 is incorrect because it does not satisfy the equation.

C: 7 is incorrect because it does not satisfy the equation.

D: 6 is incorrect because it does not satisfy the equation.