Question

Efectuati: a) (radical 11 + radical 7)×(rad.11- rad.7).b) (rad.7+rad.5)la puterea 2. c)(2 rad 7+ 3 rad 5)×(3 rad 5 - 2 rad 7). d) (2 rad 5 - 3) la puterea 2. e) (rad 3-1)×(rad 6+rad 3+rad 2+1)×(rad 2-1). f) (3 rad 2 - rad 5) la puterea 2+3 (rad 5 + rad 2) la puterea 2.Ajutooor! Urgent va rog!!Dau coronita!!

Answer 1

a). (radical 11+radical 7) la puterea 2
b). (radical 7 + rad.5)(rad.7 -rad.5)
c). (2 rad 7 +3 rad 5) la puterea 2
d). (2 rad 5-3)(2 rad 5 +3)
e).= 2 
f). (3 rad 2- rad 5)la puterea 5. x7 +(3 rad 2 -rad 5) la puerea 5 x 2rad 10.