The roots of the quadratic equation are:
Answer and explanation
Correct answer: C. Real, unequal, and irrational
- Step 1: Determine the discriminant for the quadratic equation , where , , and .
- Step 2: Calculate: . Since , the roots are real and distinct. Since is not a perfect square, is irrational, making both roots real, unequal, and irrational.
Answer
Real, unequal, and irrational.
Why not the others: 'Real, equal, and rational' requires ; 'Complex and imaginary' requires ; 'Real, unequal, and rational' requires to be a non-zero perfect square.
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