Question

Find the product of (2x − 5y)^2.

Answer 1

4x-10y?

Answer 2

so 4x-25y?

Answer 3

okay (2x-5y)^2 is same as \[\huge\rm (2x-5y) (2x-5y)\]

Answer 4

ok..

Answer 5

or another way to do this is
take square of first term and square of 2nd term

Answer 6

\[\huge\rm (2x)^2 = ?? ~~~~~~~~~~~~~~~~~~~~~~ (-5y)^2 =?\]

Answer 7

foil method ?? do you know about it ??