Oblicz:
(5√2- 2√10) (-3√10 -2√2)
(5√2- 2√10) (-3√10 -2√2)=-15√20+60-20+4√20 =-11√4·√5 +40=-22√5+40
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(5√2- 2√10) (-3√10 -2√2)=-15√20+60-20+4√20 =-11√4·√5 +40=-22√5+40