x (x+y) = x² + xy
(x+y) (x+y) = x² + 2xy + y²
(x+1) (x-1) = x² - 1
(x+y) (x+z) = x² + xz + yx + yz
Eternamente
꧁axllxa꧂
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x (x+y) = x² + xy
(x+y) (x+y) = x² + 2xy + y²
(x+1) (x-1) = x² - 1
(x+y) (x+z) = x² + xz + yx + yz
Eternamente
꧁axllxa꧂