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How many real solutions does the equation x^2 - 9x + 4 = 0 have?

A) One solution
B) Two solutions
C) No real solutions
D) Three solutions

User Polat
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1 Answer

3 votes

Final answer:

The quadratic equation x^2 - 9x + 4 = 0 has two distinct real solutions, as the discriminant (b^2 - 4ac) is positive (65). Therefore, the correct answer is B) Two solutions.

Step-by-step explanation:

To determine the number of real solutions for the quadratic equation x^2 - 9x + 4 = 0, we can utilize the discriminant method from the quadratic formula, which is given by b^2 - 4ac, where the quadratic equation is of the form ax^2 + bx + c = 0. For this equation, a = 1, b = -9, and c = 4. Calculating the discriminant:
Discriminant = b^2 - 4ac
= (-9)^2 - 4(1)(4)
= 81 - 16
= 65

Because the discriminant is positive (65), there are two distinct real solutions for the given quadratic equation. So, the correct answer is B) Two solutions.

User Taras Melnyk
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