Question

faz com as contas pufavo​

Answer 1

Resposta:

Olá!

Explicação passo a passo:

5. a)

$m^2-12m+36\\m^2-2m.6+6^2\\(m-6)^2$          $(a-b)^2=a^2-2ab+b^2$

$a=m, b=6$

b)

$a^2+14a+49\\a^2+2a.7+7^2\\(a+7)^2$

$a=a,b=7$

c)

$9x^2+12x+4\\(3x)^2+3x.2+2^2\\(3x+2)^2$

$a=3x,b=2$

d)

$9a^2-12a+4\\(3a)^2-6a.2+2^2\\(3a-2)^2$

$a=3a,b=2$

Bons Estudos!