Question

1+2+3+4+3+2+1= square of​

Answer 1

Answer:

Step-by-step explanation:

$1+2+3+4+3+2+1=16\\\\and \;\;16 \;\;is \;square\;\;root \;\; of \;\;4\\so\\1+2+3+4+3+2+1\\\\is \;\;square \;\;of \;\;4$

Answer 2

Answer:

$\sqrt{16}$

Step-by-step explanation:

x^2=16

x=√16

x=4