Question

me ajudem e URGENTE

Answer 1

( 3 + X)² =  [ (3)²  + 2 * 3 * X + (X)² ] = 9 + 6X + X² ***

b

( x + 5)²  =  [ (x)² + 2 * x * 5 + (5)² ] = x² + 10x + 25 ****

c

( x + y)² = [ (x)² + 2 * x * y + ( y)² ] = x² + 2xy + y² ****

d

( x + 2)² = [ (x)²  + 2 ** x * 2  + ( 2)² ] = x² + 4x + 4 ****

e

(3x + 2)² = [ (3x)²  + 2 * 3x * 2 + (2)² ] = 9x² + 12x + 4

f

( 2x + 1)² = [ (2x)²  +  2 * 2x * 1 + (1)² ] = 4x² + 4x + 1 ****

g

( 5 + 3a)²  = [ (5)² + 2 * 5 * 3a + (3a)² ] = 25 + 30a + 9a²  ****

h

( 2a + x)²  = [ (2a)²  + 2 * 2a * x + (x)² ] = 4a² +4ax + x² ****

creio que ajudei