Question

{[√25-√49)².3²-6.4]:2}

Answer 1

{[(√25-√49)²•3²-6•4]:2}=
{[(5-7)²•3²-6•4]:2}=
{[2²•3²-6•4]:2}=
{[4•9-24]:2}=
{[36-24]:2}=
{12:2}
6

espero ter ajudado boa noite