Question

answer at least any 1-2
answer it with method​

Answer 1

Answer:

not sure about 3 so I haven't done 4 th

Step-by-step explanation:

in first question I use the method a plus b square is equal to a square + b square plus to ab and in second question I use the method of a minus b square is equal to a square minus 2 a b + b square andHindupur I v 1 in v when I use the method of a minus b + b is equal to a square + b square