Set 5: Quadratic Equations (Intermediate)

[Variation 1] **Choice B is the best answer.** Factor: (x - 1)(x - 7) = 0. Roots are 1 and 7. Larger: 7

Explanation

Answer: B

PROBLEM

Recent studies show that solve: x squared - 8x + 7 = 0. Find the larger root.

Solve: x squared - 8x + 7 = 0. Find the larger root.

✓ Correct

Detailed Explanation

[Variation 1] Choice B is the best answer. Factor: (x - 1)(x - 7) = 0. Roots are 1 and 7. Larger: 7

Why others are wrong:

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

C: 14 is incorrect because it does not satisfy the equation.

D: 5 is incorrect because it does not satisfy the equation.

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