Answer
a) $2*\sqrt 3$
b) $±3$
c) Part (a) adds the radicals, while part (b) multiplies the radicals.
Work Step by Step
a)
$\sqrt 3 + \sqrt 3$
$1*\sqrt 3 + 1*\sqrt 3$
$\sqrt 3*(1+1)$
$\sqrt 3*(2)$
$2*\sqrt 3$
b)
$\sqrt 3 *\sqrt 3$
$\sqrt {3*3}$
$\sqrt {9}$
$±3$
