BŁAGAM O ROZIWAZNIE KROK PO KROKU
A) (x-5y)(-x+8y)
B) (-3c + 2d)(6c-2d)
A) (x-5y)(-x+8y)
B) (-3c + 2d)(6c-2d)
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Odpowiedź:
A. (x-5y)(-x+8y)=-x²+8xy+5xy-40y²=
=-x²+13xy-40y²
B. (-3c+2d)(6c-2d)=-18c²+6cd+12cd-4d²=
=-18c²+18cd-4d²