Use Descartes rule of signs to determine the possible numbers of positive and negative real numbers of f, list possible rational zeros of f, use a graphing utility to graph f so that some of the possible zeros can be disregarded and determine the real zeros of f f(x)=x^3+x^2-4x-4

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step-by-step explanation:

80

step-by-step explanation:

68719476736

step-by-step explanation:

8*8*8*8*8*8*8*8*8*8*8*8=68719476736

$320 to $405

step by step explanation:

in one day he earns between $64 and $81

therefore if he works for 5 days, he will earn between 64 x 5 to 81 x 5

= $320 to $405