Question

найдите значение произведения 2004*2000 если 2002^2=a

Answer 1

2004*2000 = 2002*2000 + 4000 = 2002*2000+ 4004 - 4= 2002*2002 - 4 = a - 4

Answer 2

(2002 - 2) (2002 + 2) = 2002² - 2² = а - 4


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