Question

√5.√2=
√2.√8=
√2.(√7+2)

Answer 1

$a) \sqrt{5} \times \sqrt{2 } = \sqrt{10}$

$b) \sqrt{2} \times \sqrt{8} = \sqrt{2 \times 8} = \sqrt{16} = 4$

$c) \sqrt{2} \times ( \sqrt{7} + 2) = \sqrt{2} \times \sqrt{9} = \sqrt{2} \times 3 = 3 \sqrt{2}$