Question

A= √18 ·(√147 -√108 +√300 - √432 )
B= √48 ·(√50-√32 +√128 -√98 )
Aflati produsul A ·B si raportul $\frac{A}{B}$

Answer 1

A= √18 ·(√147 -√108 +√300 - √432 ) =
=3√2 ·(7√3 -6√3 +10√3 - 12√3 ) =
=3√2 ·(-√3) =
=-3√6
 B= √48 ·(√50-√32 +√128 -√98 ) =
=4√3 ·(5√2-4√2 +8√2 -7√2 ) =
=4√3 ·2√2=8√6
A×B=-3√6×8√6=-24×6=-144
A/B=--3√6/8√6=-3/8