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list potential rational zeros f(x)=x^4+3x^2-4

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0

f(x)=x^6+4x^5+4x^4+3x^3-x^2-5x+4 Find the maximum number of real zeros, and Use Descartes's rule of signs to determine how many positive and how many negative zeros the function has. You do not need to find the zeros.

Use the intermediate value theorem to determine whether the polynomial function has a zero in the given interval. f(x)=8x^5-4x^3-9x^2-9;[1,2]

Find the real and complex zeros of the following function. f(x)=x^3-3x^2+25x+29

Find the bounds on the real zeros of the following function. f(x)=x^5-5x^4+8x+2