Oblicz
1. (3-√7)(2+2√7)
2.(3-3√3)(3+3√3)
3. (√2-4)³
1. (3-√7)(2+2√7)=
=6+6√7-2√7-14=
=-8+4√7
2.(3-3√3)(3+3√3)=
=9-27=
=-18
3. (√2-4)³=
=2√2-24+48√2-64=
=50√2-88
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1. (3-√7)(2+2√7)=
=6+6√7-2√7-14=
=-8+4√7
2.(3-3√3)(3+3√3)=
=9-27=
=-18
3. (√2-4)³=
=2√2-24+48√2-64=
=50√2-88