If x=m is one of the solution of the equation 2x2+5x-m=0 the possible value of m are
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2×2+5x-m=0
4+5m-m=0 (x=m)
4+4m=0
4m=-4
m=-4/4
m= -1
4+5m-m=0 (x=m)
4+4m=0
4m=-4
m=-4/4
m= -1
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