Can u guys plz help me with these questions

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

Can someone me out here number 4 plz

Y< 2x-3 y? mx+3 which value of m and which symbol result in the system of inequalities shown above having no solution? a) m=-2; > b) m=-1/2; < c) m=2; > d) m=2;