Let f(x) = F_TEXT.

Where does this function intersect the x-axis (i.e. what are the roots or zeroes of f(x))?

• WRONGS[0]
• WRONGS[1]
• WRONGS[2]
• WRONGS[3]
• WRONGS[4]

The function intersects the x-axis when f(x) = 0, so you need to solve the equation:

F_TEXT = 0

Use the quadratic formula to solve ax^2 + bx + c = 0:

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

a = A, b = B, c = C

x = \frac{-B \pm \sqrt{B^2 - 4 \cdot A \cdot C}}{2 \cdot A}

x = \frac{-1*B \pm \sqrt{B*B - 4*A*C}}{2*A}

x = \frac{-1*B \pm formattedSquareRootOf(B*B-4*A*C)}{2*A}