wzoryskroconego mnozenia
(2a-4b)*2=
(3a+2b)*2=
(5b-4a)(5b+4a)=
(2a-4b)*2=4a-8b
(3a+2b)*2=6a+4b
(5b-4a)(5b+4a)=25b^2-16a^2
^2 = Do potęgi 2
1. (2a-4b)^2=4a^2 - 16ab +16b^2 wzór: (a-b)^2
2. (3a+2b)^2= 9a^2 + 12ab + 4b^2 wzór: (a+b)^2
3. (5b-4a)(5b+4a)= (5b^2 - 4a^2) wzór: (a^2 - b^2)
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(2a-4b)*2=4a-8b
(3a+2b)*2=6a+4b
(5b-4a)(5b+4a)=25b^2-16a^2
^2 = Do potęgi 2
1. (2a-4b)^2=4a^2 - 16ab +16b^2 wzór: (a-b)^2
2. (3a+2b)^2= 9a^2 + 12ab + 4b^2 wzór: (a+b)^2
3. (5b-4a)(5b+4a)= (5b^2 - 4a^2) wzór: (a^2 - b^2)