Question

The value of $(9.6{)}^2=$___

Answer 1

Answer: 92.16

$(9.6{)}^2=(10.0-0.4{)}^2$
$\text{ Since, }(a-b{)}^2=\left(a^2-2ab+b^2\right)$
$=(10{)}^2-2\times 10\times (0.4)+(0.4{)}^2$
$=100-8+0.16=92.16$