Homework: HW 3.4 (Zeros of polynomial functions; polynomial Score: 0.5 of 1 pt %
ID: 2910993 • Letter: H
Question
Homework: HW 3.4 (Zeros of polynomial functions; polynomial Score: 0.5 of 1 pt %-5.5.49 Save 22 0124 (23 complete) IW Score: 791 7%, 1 9 of Question Help Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers f(x)2x34x -38x+76 Find the real zeros of f. Select the correct choice below and, if necessary, fill in the answer box to complete your answer x= 2,-V19A19 Simplity your answer. Type an exact answer, using radicals as needed Use integers or fractions for any rational numbers in the expression. Use a comma to separate answers as needed) There are no real zeros B. Use the real zeros to factor f over the real numbers (Simplify your answer. Type your answer in factored form Type an exact answer, using radicals as needed Use integers or fractions for any rational numbers in the expression Enter your answer in the answer box and then click ch éck An All parts showing (Explanation / Answer
f(x)=2x3-4x2-38x+76
Roots are 2,-sqrt 19, sqrt 19
THat is
x=2, x=sqrt 19, x=-sqrt 19
x-2=0, x-sqrt19=0, x+sqrt19=0
f(x)= (x-2)(x-sqrt19)(x+sqrt19)
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