Question

maths use the above formula to fill proper terms in the following boxes.
a (x+2y)2=x2+ box+4y2​

Answer 1

Answer:

box=4xy

Step-by-step explanation:

(x+2y)^2=x^2+ box+4y^2

=x^2+2(x)(2y)+(2y)^2

=x^2+4xy+4y^2