Question

find the square of x+2y​

Answer 1

Answer:

x^2 + 4xy + 4y^2

Step-by-step explanation:

Please read it as

x square plus 4xy plus 4 y square

Answer 2

Step-by-step explanation:

= (x+2y)^2

(a+b)^2 = a^2+b^2+2ab

(x+2y)^2 = x^2 + (2y)^2 + 2(x×2y)

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

answer: x^2 + 4y^2 + 4xy