Question

Rút gọn bt

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

Đừng làm tắt ok

Answer 1

Trả lời

\(\left(x+y\right)^2+\left(x+y\right)^2\)

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

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

\(=2.\left(x+y\right)^2\)

Study well 

Answer 2

\(\left(x+y\right)^2+\left(x+y\right)^2=2\left(x+y\right)^2\)giống như \(a^2+a^2=2a^2\)thôi bạn nhé

Answer 3

 \(( x + y )^2 + ( x + y )^2\)

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

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

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

Answer 4

Trả lời : 

\(\left(x+y\right)^2+\left(x+y\right)^2\)

\(=2\left(x+y\right)^2\)

Answer 5

Trả lời : 

\(\left(x+y\right)^2+\left(x+y\right)^2\)

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

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

\(=2\left(x+y\right)^2\)

Answer 6

Bài làm

( x + y )² + ( x + y ) ²

= x² + 2xy + y² + x² + 2xy + y² 

= 2x² + 4xy +2y²

= 2.( x + y )²

# Học tốt #