September 2018 1 27 Report

Zapisz wyrażenie nie używając nawiasów. Zredukuj wyrazy podobne.
2a-5b+(7-3a-2b)=
4-14x-(2x[<do potegi 3]-5x+3)=
-(6st+2s)+4st+2s=

(3m+8n-9)+(15-m-n)
(-4a[<do potegi 3]+7a[<do potegi 2]-1)-(2a[<do potegi 2]+3a-1)

(-xy+5y-x)-(xy+2-y)


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