3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)

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3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)

3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)
3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)

3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)
3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)
=3(m²-2m+1)+m³+8-m³-3m²+3m
=3m²-6m+3+m³+8-m³-3m²+3m
=-3m+11