5a^3ImI+1-(m+2)b-10是七次二项式,求m^2+m的值
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5a^3ImI+1-(m+2)b-10是七次二项式,求m^2+m的值
5a^3ImI+1-(m+2)b-10是七次二项式,求m^2+m的值
5a^3ImI+1-(m+2)b-10是七次二项式,求m^2+m的值
5a^(3ImI+1)-(m+2)b-10是七次二项式,则有:
3ImI+1=7
m+2=0
解得m=-2
m²+m=(-2)²-2=2