Posted in Հանրահաշիվ, Uncategorized

Հանրահաշիվ 10.03 18

a-b

(a-b)^2

a^2-b^2

(a-b)^3

 

Վարժ.254

(x-y)^3=x^3-y^3

(x-1)^3=x^3-3

(x-2)^3=x^3-6

(x-3)^3=x^3-9

 

Վարժ.255

(a+b)^3=a^3+b^3

(a-b)^3=a^3-b^3

(a+2)^3=a^3+6

(a-2)^3=a^3-6

(a+3)^3=a^3+9

(a+4)^3=a^3+16

(a-4)^3=a^3-16

 

 

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