Please help 17 ,19 SEP19TU. MJA12. x4 - 5x³ + 9x² - 7x + 2 = 014. 2x4 - x³ - 6x + 3 = 0QQ23. Suppose f(x) = (x - 2)(x + 2)(x + 1)².a. Determine the zeros of the function.16. State the number of complex roots, the number of positive real roots, an-number of negative real roots of x4 - 2x³ + 7x² + 4x 15 = 0.EFind the number of possible positive real zeros and the number of possiblenegative real zeros for each function. Then determine the rational zeros.17. f(x) = x³ - 7x - 618. f(x) = x³ - 2x² - 8x-19. f(x) = x³ + 3x² - 10x - 2421. f(x) = x² + 2x³ - 9x² - 2x + 8-20. f(x) = 10x³ − 17x² − 7x + 222. f(x) = x² - 5x² + 4●Db. Write f(x) as a polynomial function.c. Use Descartes' Rule of Signs to find the number of possible positive realand the number of possible negative real roots.d. Compare your answers to part a and part c. Explain.♫24. Manufacturing The specifications for a new cardboard container require ththe width for the container be 4 inches less than the length and the height be1 inch less than twice the length.Ca. Write a polynomial function that models the volume of the container in ter:of its length.b. Write an equation if the volume must be 2208 cubic inches.c. Find the dimensions of the new container.0A13. x³5x² - 4x + 20 = 015. 6x4 + 35x3 - x² - 7x-1=025. Critical Thinking Write a polynomial equation for each restriction.a. fourth degree with no positive real rootsb. third degree with no negative real rootsc. third degree with exactly one positive root and exactly one negative real rootreitherلفQ Search10átvMacBook AirWDA

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17.

17. f(x) = x³ - 7x − 6 -