Zad.Oblicz. a) (3√2-3)2*(3√2+3)2 b) (3√7+4√5)2-(3√7-4√5)
a) (3√2-3)2*(3√2+3)2=
=(6√2-6)(6√2+6)=
=72-36=36
b) (3√7+4√5)2-(3√7-4√5)=
=(6√7+8√5)-(3√7-4√5)=
=6√7+8√5-3√7+4√5=
=3√7+12√5
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a) (3√2-3)2*(3√2+3)2=
=(6√2-6)(6√2+6)=
=72-36=36
b) (3√7+4√5)2-(3√7-4√5)=
=(6√7+8√5)-(3√7-4√5)=
=6√7+8√5-3√7+4√5=
=3√7+12√5