The geometric mean of real numbers a and b is 4, and the geometric mean of $a - 1$ and $b + 1$ is 6. Accordingly, what is the difference $\mathbf { a - b }$? A) 20 B) 21 C) 22 D) 23 E) 24
The geometric mean of real numbers a and b is 4, and the geometric mean of $a - 1$ and $b + 1$ is 6.
Accordingly, what is the difference $\mathbf { a - b }$?\\
A) 20\\
B) 21\\
C) 22\\
D) 23\\
E) 24