Advanced Math practice question

Answer: A. Zero

Multiply by (x + 1): x = 3 + (x + 1) → 0 = 4, which is impossible. No value of x works (and x = −1 is excluded anyway).

Why the other answers are wrong

B. Exactly one

Solving loosely gives x = 3 + x + 1, which has no solution, not one.

C. Exactly two

There is no quadratic here.

D. Infinitely many

The equation reduces to a false statement, not an identity.

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