1.) Solve the equation12x^3+x^2-9/2 x-1=)given that -1/2 is a root
2.) Use decartes Rule of signs to determine the possible number of positive and negative real zero's for, f(x)=-3x^4+2x^3-6x^2+x+4
3.) The equation for f is given by the simplified expression that results after performing he indicated operation. Write the equation for f and then graph the function
1-2/x+1
__________
1+1/x-1
4.) The force that it requires to strech a spring varies directly with the distance that is is streched. If a pound force can stretch a spring 8 inches, how much force would it take to stret

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