Question

If the arithmetic mean of the roots of the equation x² – 6x + 8 = 0 is ______.

Answer 1

If the arithmetic mean of the roots of the equation x² – 6x + 8 = 0 is 3.

Explanation:

For x² – 6x + 8 = 0, the sum of the roots = `-(-6)/1 = 6`, so the arithmetic mean = `6/2` = 3.