What are the roots of x^2 - 5x + 6 = 0?
Answer and explanation
Correct answer: A. x = 2 and x = 3
- Step 1: Find two numbers whose product is 6 and whose sum is 5. Step 2. These are 2 and 3, so (x - 2)(x - 3) = 0. Answer: x = 2 and x = 3. Why not the others: The other pairs have the right product but the wrong sum or the wrong signs.
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