Question: show all work to each question. please Name Date 4.5 Practice A In Exercises 1-6, solve the equation. 1. 93 - 92 - 309 =

show all work to each question. please

Name Date 4.5 Practice A In Exercises 1-6, solve the equation. 1. 93 - 92 - 309 = 0 2. K3 + 6/2 + 9k = 0 3. 34 - 6y3 = -342 4. n3 + 2n2 - 9n - 18 = 0 5. 3p' = 21p 6. 8u6 = 16u4 In Exercises 7-10, find the zeros of the function. Then sketch a graph of the function. 7. f(x ) = x4+ x3 - 12x2 8. 8(x) = x4 - 8x2 + 16 9. h (x) = x5 - 2x4 - 15x3 10 . f (x ) =- 3x3 - 15x2 - 12x 11. According to the Rational Root Theorem, which is not a possible solution of the equation 3x4 - 6x' + 2x + 4 = 0? A. 4 B. C . - 3 D. 12. Describe and correct the error in listing the possible rational zeros of the function. X f (x) = 13 + 3x2 - 8x - 18 Possible zeros: +2, +3, +6, 49 In Exercises 13 and 14, find all the real solutions of the equation. 13. x4 - 8x2 - 9 = 0 14. x' + 2x2 - 5x - 6=0 15. Write a third or fourth degree polynomial function that has zeros at +5. Justify your answer. 16. Determine the value of k for each equation so that the given x-value is a solution. a. x' + 2x2 - 9x + k = 0; x =3 b. x3 - 3x2 + kx - 12 = 0; x =-4

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