Answer: this is so zenskinsta can have brainliest
Step-by-step explanation:
Answer:
4a²-9
Step-by-step explanation:
(2a+3)(2a-3) = (2a)²-3² {<em>Difference</em><em> </em><em>of</em><em> </em><em>two</em><em> </em><em>squares</em><em>}</em>
= 4a²-9
The third one I think btw if you get mad at this person
Answer:
Step-by-step explanation:
The expression would be (12-9)x2=6 so he had 6 comic books
