3. Show that the equation \( 4px^3 + 6qx^2 + 2rx = p + 2q + r \) has at leastone real root between 0 and 1,\( p, q, r \) where are realconstants. (10%)
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3. Show that the equation \( 4px^3 + 6qx^2 + 2rx = p + 2q + r \) has at leastone real root between 0 and 1,\( p, q, r \) where are realconstants. (10%)