Answer:
a^2b^2+6ab+9.
Step-by-step explanation:
We have been an expression (ab+3)^2 and we are asked to find the product of our given expression.
We can see that our given expression is a perfect square and expanded form of perfect square is:
(x+y)^2=x^2+2xy+y^2
We can see that in our given expression x=ab and y=3.
Upon writing our given expression in the expanded form of perfect square we will get,
(ab+3)^2=(ab)^2+(2*ab*3)+3^2
Using exponent property (xy)^m=x^my^m we will get,
(ab+3)^2=a^2b^2+6ab+9
Therefore, the product of our given expression will be a^2b^2+6ab+9.