b) (3√2-4√3)²
9*2-2*3*4*√2*√3+16*3
18-24√6+48
66-24√6=2(33-12√6)
c) (5√3-2)²√3
(25*3-2*2*5*√3+4)√3
(79-20√3)√3=79√3-60
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b) (3√2-4√3)²
9*2-2*3*4*√2*√3+16*3
18-24√6+48
66-24√6=2(33-12√6)
c) (5√3-2)²√3
(25*3-2*2*5*√3+4)√3
(79-20√3)√3=79√3-60