Question

PLZ help super super fast

Answer 1

it's E

Explanation:

(5x+y)²

You expand the bracket

it gives;

(5x + y)(5x+y)

Now, multiply 5x by 5x=25x²

multiply 5x by y= 5xy

multiply y by 5x=5xy

multiply y by y=y²

Bringing into an equation it gives;

25x²+5xy+5xy+y²

=25x²+10xy+y²