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The Brainliest Answer!
2015-04-15T09:35:58+05:30
        Given 4x square+3x+5=0

          x square +3/4x +5/4=0

         x square +3/4x= -5/4

x square+3/4x+(3/8)square = -5/4 + (3/8)square 

(x+3/8)square = -5/4 + +9/64

( x + 3/8 ) square = -71/64 < 0

but (x + 3/8 )square cannot be negative for any real value of x.  so, there is no real value of x satisfying the given equation.  
therefore, the given equation has no real roots....

hope it help u................


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