Question

simplify under root 99 ×under root 396

Answer 1

$\sqrt{99} \times \sqrt{396}$
$\sqrt{9 \times 11} \times \sqrt{36 \times 11}$
$\sqrt{9} \times \sqrt{11} \times \sqrt{36} \sqrt{11}$
$\sqrt{3 \times 3} \times \sqrt{6 \times 6} \times \sqrt{11 \times 11}$
$3 \times 6 \times 11$
198

Answer 2

=3root11×3root 66

=3(root11×root66)

=3root726