Final answer:
To find one root of the quadratic equation 4x² - bx - 27 = 0, use the quadratic formula and substitute the values of a, b, and c from the equation. The value of x represents one of the roots.
Step-by-step explanation:
To find one root of the quadratic equation 4x² - bx - 27 = 0, we need to use the quadratic formula:
x = (-b ± √(b² - 4ac)) / 2a
Comparing this formula with the given equation, we have a = 4, b = -b, and c = -27.
- Substitute the values of a, b, and c into the quadratic formula.
- Solve for x using the positive sign before the square root.
- The value of x represents one of the roots of the equation.
In this case, we don't have a value for b, so we cannot find the specific root. Therefore, the answer is None of the above (E).