Which statement about the following equation…

Maths Questions

Which statement about the following equation is true: 3x¬≤ – 8x + 5 = 5x¬≤? A. The discriminant is less than 0, so there are two real roots. B. The discriminant is greater than 0, so there are two real roots. C. The discriminant is less than 0, so there are two complex roots. D. The discriminant is greater than 0, so there are two complex roots.

Answer

The equation 3x^2 – 8x + 5 = 5x^2 can be rearranged into the quadratic form 2x^2 – 8x + 5, leading to a discriminant greater than zero, which confirms the existence of two distinct real roots. To analyze it, we rewrite the equation to standard form ax^2 + bx + c, where a=2, b=-8, and c=5. The discriminant is calculated using Œî = b^2 – 4ac, resulting in Œî = (-8)^2 – 4 * 2 * 5, which simplifies to 64 – 40, giving us 24. Thus, as the discriminant is positive, we conclude that there are two distinct real roots present.

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