Zapiszw najprostszej postaci obwod: a) rombu o boku 4x+1,5y-1 b)rownolegloboku o bokach 6,5x+y+9 oraz 3,5x-2y+4
a) 4*(4x+1,5y-1)=16x-6y-4
b)2*( 6,5x+y+9+(3,5x-2y+4))=2*(10x-y+13)=20x-2y+26
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a) 4*(4x+1,5y-1)=16x-6y-4
b)2*( 6,5x+y+9+(3,5x-2y+4))=2*(10x-y+13)=20x-2y+26