Question

Multiply.
√(7)(√(5)-√(3))

Answer 1

I got √(35-√21 am I correct?

Answer 2

=sqrt35-sqrt21 = 1.33

Answer 3

according to the given you are right

Answer 4

\[\Large \sqrt {7} \left( \sqrt {5}-\sqrt {3} \right) \]


\[\Large \sqrt {7}\times\sqrt {5}-\sqrt {7}\times\sqrt {3} \]


\[\Large \sqrt {7\times5}-\sqrt {7\times3} \]


\[\Large \sqrt {35}-\sqrt {21} \]
So \[\Large \sqrt {7} \left( \sqrt {5}-\sqrt {3} \right)= \sqrt {35}-\sqrt {21}\]


So you have the correct answer.