Need full solution, help please :)
Need full solution
(√3−2√5)(2√5+√3)17√20 $$ =(√3−2√5)(√3+2√5)17√20|(a−b)(a+b)=a2−b2(√3−2√5)(√3+2√5)=3−4∗5 $$ =3−4∗517√20 $$ =−1717√20 $$ =−1√20|∗√20√20 $$ =−√2020 $$ =−√4∗520 $$ =−√4∗√520 $$ =−2√520 $$ =−√510
(√3−2√5)(2√5+√3)=3−4×5=−17
1√20=√2020=2√520=√510
So:
(√3−2√5)(2√5+√3)17√20=−17√517×10=−√510
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