Question

preencha os quadros
17 pnts ​

Answer 1

Resposta:

( 1 )

$x^{2} + 2 * \sqrt{9} * x +9 = (x+ \sqrt{9} )^{2} \\x^{2} + 6x + 9 = (x+3)^{2}$

( 2 )

$x^{2} -6x + 9 = (x-3)^{2}$

( 3 )

$4x^{2} - 4xy+y^{2} = (2x-y)^{2}$

( 4 )

$16x^{2} + 24ax+ 9a^{2} = (4x+3a)^{2}$

Answer 2

( 1 )

x^{2} + 2 * \sqrt{9} * x +9 = (x+ \sqrt{9} )^{2} \\x^{2} + 6x + 9 = (x+3)^{2}

( 2 )

x^{2} -6x + 9 = (x-3)^{2}

( 3 )

4x^{2}  - 4xy+y^{2} = (2x-y)^{2}

( 4 )

16x^{2}  + 24ax+ 9a^{2} = (4x+3a)^{2}