Question

$a)({2a + x} \: )^{2} = \\ b)( {3x + 2y})^{2} = \\ c)( {4ab + 2x)}^{2} = \\ d)( {x + y})^{2} = \\ e)( {ab + bc)}^{2 = }$
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Answer 1

Resposta:

Explicação passo-a-passo:

a

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

b

( 3x + 2y )² = [ (3x)² + 2 * 3x * 2y + (2y)² ] = 9x² + 12xy + 4y² ****resposta

c

(  4ab + 2x)² = [ (4ab)² + 2 * 4ab * 2x + (2x)² ] =                                  16a²b² + 16abx + 4x² *****resposta

d

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

e

( ab + bc)² = [ (ab)² + 2 * ab * bc + (bc)² ] =  a²b² + 2ab²c + b²c² **** resposta