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Mathematics, 24.06.2019 02:20 la200564

What are all of the real roots of the following polynomial? f(x) = x4 - 13x2 + 36 oa. -2 and 2 o b. 3 and 3 oc. -3, -2, 2, and 3 od. -3, -1, 1, and 3

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What are all of the real roots of the following polynomial? f(x) = x4 - 13x2 + 36 oa. -2 and 2 o b....
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