中一math

(ab)(bc)(ac)
=abbcac
=aabbcc
=a^2 b^2 c^2

(ab)(bc)(ac)
=abbcac
=aabbcc
=a^2 b^2 c^2

(ab)(bc)(ac)
=(ab^2c)(ac)
=a^2b^2c^2

(ab)(bc)(ac)
=axbxbxcxaxc
=axaxbxbxcxc
=(abc)的二次方

(ab)(bc)(ac)
=a1+a1+b1+b1+c1+c1
=a2+b2+c2

2008-01-08 17:52:31 補充：
(ab)(bc)(ac)=a1+a1+b1+b1+c1+c1=a^2+b^2+c^2

(ab) (bc) (ac)= (a^2bc) (bc)
=a^2b^2c^2

[(ab)(bc)](ac)
=[absq.c](ac)
=asqbsq.csq.

(ab)(bc)(ac)
=acb2(ac)
=a2c2b2
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P.S.a2c2b2即係a既2次方c既2次方b既2次方

(ab)(bc)(ac)
=a b^2 c (ac)
= a^2 b^2 c^2
= (abc)^2
姐係(abc)square

(ab)(bc)(ac)
=a x a x b x b x c x c
=a的二次方b的二次方c的二次方