(a+3)^2=(a-3)(b+3)=a^2+3a+3a+9=

Let's break down the given expression step by step:1. \((a+3)^2\): 2. \((a-3)(b+3)\): So, the expression \((a+3)^2 = (a-3)(b+3)\) is not correct because: Therefore, the correct simplification of \((a+3)^2\) is: And the expression \((a-3)(b+3)\) simplifies to: These two expressions are not equal unless specific values for and are chosen such that the equality holds.