He is currently 47.
56-9=47 and if you switched it around it would be 47+9=56 so the answer is 47.
1.732
2.449 these are the values
Answer:a^2+2ab+b^2
Step-by-step explanation:
First write it out in extended form, (a+b)(a+b) then multiply each term by the other in each parenthesis, such as a*a+b*b+a*b+a*b
Then, once you have done that, simplify it. you will then get the answer a^2+2ab+b^2