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Lesson: Data Sufficiency Intermeddiate - 09

An Example of Quadratics In Data Sufficiency

[Page 9 of 21]

Let's apply what we just learned to a classic Data Sufficiency example. Do the following problem, then click Continue.

What is the value of x?

  1. x 2 - 9 = 0
  2. x 2 + 6x + 9 = 0
Statement (1) BY ITSELF is sufficient, but statement (2) by itself is not sufficient.
Statement (2) BY ITSELF is sufficient, but statement (1) by itself is not sufficient.
Both statements TAKEN TOGETHER are sufficient, but NEITHER statement BY ITSELF is sufficient.
EACH statement BY ITSELF is sufficient.
The two statements TAKEN TOGETHER are NOT sufficient.

Countinue

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