当m= 时,代数式m(m+1)与1/2(m+1)(m+1)的值互为相反数
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当m= 时,代数式m(m+1)与1/2(m+1)(m+1)的值互为相反数
当m= 时,代数式m(m+1)与1/2(m+1)(m+1)的值互为相反数
当m= 时,代数式m(m+1)与1/2(m+1)(m+1)的值互为相反数
由题意得,
m(m+1)+1/2(m+1)(m+1)=0
(m+1)(m+1/2m+1/2)=0
即(m+1)(3/2m+1/2)=0
∴m+1=0,3/2m+1/2=0
m1=-1,m2=-1/3
m(m+1)=-1/2(m+1)(m+1)
此时解方程 m+1=0或m=-1/2(m+1)
m=-1或m=-1/3
您好!
答案为-1 或者-1/3
互为相反数说明:m(m+1)+1/2(m+1)(m+1)=0
解得,m1=-1 m2=-1/3