Question
Asked Nov 13, 2019
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For each equation factor completely and find the horizontal intercepts (x-intercepts, zeros).

f(x)=x3-4x-12x

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Expert Answer

Step 1

Given:

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Г(х)-х* -4х-12х

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Step 2

Calculation:

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By assumption, I take the function as f (x)=x3-16x and solve the problem as follows.

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Step 3

Zeros:

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To find the roots, put the function equal to zero. f(x)=x° -16x x(x2-160, (factor out common term) x 0 and (x-16) x2 16 Therefore, the zeros of the function are x = 0, x = 4, x =-4

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