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b) (4√2-3)-(2√2-11)= 4√2-3-2√2+11= 2√2+8
c) (4√3+2)×(√3-1)= 12√3-4√3+2√3-2= 10√3-2 tego pewna nie jestem
d) (√7-√3)×(√7+√3)= 7+√21-√21-3= 4
e) (1+3√2)²= 1+9×2= 19
f) (3-2√6)²= 9+4×6= 33