WZORY SKRÓCONEGO MNOŻENIAOblicz :
a)
c)
d)
e)
wiem, że nie ma "b" ale to celowo ;)
a) 2x^2 + 12xy + 9y^2
c) -(3a+2b)^2 = -(9a^2 + 12ab + 4b^2) = -9a^2 - 12ab - 4b^2
d) -(2a-3b)^2 = -(4a^2 - 12ab + 9b^2) = -4a^2 + 12ab - 9b^2
e) 8a^3 + 6a^2 *b + 6ab^2 + b^3
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a) 2x^2 + 12xy + 9y^2
c) -(3a+2b)^2 = -(9a^2 + 12ab + 4b^2) = -9a^2 - 12ab - 4b^2
d) -(2a-3b)^2 = -(4a^2 - 12ab + 9b^2) = -4a^2 + 12ab - 9b^2
e) 8a^3 + 6a^2 *b + 6ab^2 + b^3