Answer:
=8x^3+27
Step-by-step explanation:
First you are going to multply 2x by all of the other numbers in the 2nd parentheses, then do the same with 3. By doing this you should get and answer then combine like terms.
Answer: He now weighs 4.2 kg because 4/10 of 3 is 1.2 and 1.2+3=4.2
