September 2018 1 17 Report

1.Zredukuj wyrazy podobne i wykonaj działania

a).(10a+3b)(7a-4b)

b).3(x-5y)(2x+y)

c).(a-5b)(2a+b)(2a-3b)

d).(0,5x+0,1y)^2

e).(x^2+1)(x^2-1)

f).(x^2-1)^2

^------> do kwadratu


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