因为:m+n=-3,n-p=1所以:m+n-(n-p)=-3-1 m+n-n+p=-4 m+p=-4原式=1/4*(m+p)*(m+p)+3(m+p)-7 =[1/4(m+p)+3]*(m+p)-7 =[(1/4)*(-4)+3]*(-4)-7 =(-1+3)*(-4)-7 =2*(-4)-7 =-8-7 =-15
-13