作业帮求实数m,使不等式x²-8x+20/[mx²+2(m+1)x+9m+4]
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![求实数m,使不等式x²-8x+20/[mx²+2(m+1)x+9m+4]](/uploads/image/z/6103160-8-0.jpg?t=%E6%B1%82%E5%AE%9E%E6%95%B0m%2C%E4%BD%BF%E4%B8%8D%E7%AD%89%E5%BC%8Fx%26%23178%3B-8x%2B20%2F%5Bmx%26%23178%3B%2B2%28m%2B1%29x%2B9m%2B4%5D)
求实数m,使不等式x²-8x+20/[mx²+2(m+1)x+9m+4]
求实数m,使不等式x²-8x+20/[mx²+2(m+1)x+9m+4]
求实数m,使不等式x²-8x+20/[mx²+2(m+1)x+9m+4]
x²-8x+20/[mx²+2(m+1)x+9m+4]<0的解集是实数集R ,而x²-8x+20恒为正,那么mx²+2(m+1)x+9m+4
恒为负,则m<0,