What are the roots of x² − 5x + 6 = 0?
Answer and explanation
Correct answer: D. x = 2 and x = 3
- Step 1: Factorise: (x − 2)(x − 3) = 0. Step 2. Set each factor to zero. Answer: x = 2 and x = 3. Why not the others: the other pairs fail the sum or product test for the coefficients -5 and +6.
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