(a-b)2= a2-2ab+ b2
(a+b)(a-b)= a2 - b2
to będzie tak:
(a-b)^2= a^2-2^ab+ b^2
(a+b)(a-b)= a^2 - b^2
^ - znaczek dla oddzielenia ; )
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(a-b)2= a2-2ab+ b2
(a+b)(a-b)= a2 - b2
to będzie tak:
(a-b)^2= a^2-2^ab+ b^2
(a+b)(a-b)= a^2 - b^2
^ - znaczek dla oddzielenia ; )