Question

In the expressions, $ab$ and $a^2{b}^2$ can we find any common factors?

If yes, then which are they?

• A. No, there are no common factors.
• B. Yes, $a$ is the only common factor
• C. Yes, $b$ is the only common factor
• D. Yes, both $a$ and $b$ are common factors

Answer 1

The correct option is D Yes, both $a$ and $b$ are common factors

$ab=a\times b$
$a^2{b}^2=a^2\times b^2=a\times a\times b\times b$
$\therefore a$ and $b$ are common factors of $ab$ and $a^2{b}^2$

So, option D is correct.