If 3x² + 27 = -18x, what is x? A. -9 B. -3 C. 0 D. 6 E. 9 (B) Look at the equation carefully. It is a quadratic equation, so it must be set equal to zero in order to solve for x. If we add 18x to both sides of the equation, we'll get: 3x² + 18x + 27 = 0.
We can now factor out a 3: x² + 6x + 9 = 0.
This can be factored further: (x + 3)(x + 3) = 0, so x = -3.
The correct answer is choice (B). ---------- The equation is incorrect. It should be 3x² + 18x + 27.
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