Question

************************************************************************************************************************************************************************************************************************** Quadrado da soma de dois termos

A) ( 1x+y )²

B) ( 2a+b ) ²

C) ( 3x+1 ) ²

D) ( 1x+4y ) ²

E) ( 5a+2m ) ²

Answer 1

A) ( 1x+y )²
( 1x+y ).( 1x+y )
(x+y)²
x²+2xy+y²

B) ( 2a+b ) ²
( 2a+b ).( 2a+b )
(2a)²+2.2ab+b²
4a²+4ab+b²

C) (3x+1) ²
(3x+1).(3x+1)
(3x)²+2.3x.1+1²
9x²+6x+1

D) ( 1x+4y ) ²
( 1x+4y ).( 1x+4y )
(x+4y)²
x²+8xy+16y²

E) ( 5a+2m ) ²
(5a+2m).(5a+2m)
(5a²)+2.5a.2m+(2m)²
25a²+20am+4m²

Bons estudos.