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2·(-2)-5(-2+1)+(-2)·5=-4-5·(-1)+(-10)=-4+5-10=-9
(m+n)(n-2)(2m+3n) dla m=-1,n=-7
(-1+(-7))(-7-2)(2·(-1)+3·(-7))=-8·(-9)·(-2-21)=72·(-23)=-1656
1+x(x+4) dla x=-12
1+(-12)(-12+4)=1-12·(-8)=1+96=97
(-1+(-7)][(-7-(-1)][(2*(-1)+3*(-7)]=(-8)*8*(-2+(-21)=(-64)*(-42)=2688
1+(-12)*(-12+4)=1+144-48=97