Question 499543
These graphs may help you find potential roots to test.
.
a)
{{{graph(500,500,-5,5,-5,5,4*x^4+24*x^3+51*x^2+44*x+12)}}}
.
b)
{{{graph(500,500,-5,5,-5,5,x^3-7*x^2+16*x-12)}}}
.
c)
{{{graph(500,500,-5,5,-5,5,2*x^3+x^2-4*x-3)}}}
.
d)
{{{graph(500,500,-5,10,-10,10,4*x^5-8*x^4-17*x^3+12*x^2+9*x)}}}