(b) We want to estimate a solution to the equation 24 = + 7 Find a positive integer n such that a solution lies in the interval [n, n + 1]. Answer:

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adieLv10

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Lelia LubowitzLv2

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Related questions

9. Let f(0) = 2.1 + cos.r. [3] (a) Using appropriate theorems, prove that f(1) = 0 for some r in the interval [-/2,0). [3] (b) Show that f(0) = 0 has exactly one solution. [3] (c) If g is the inverse function of f, find g(n) and g'().

Hi, this question was in a year 11 extension maths textbook in the enrichment section. I have the answer as k>17 and k<-11 because I graphed it on GeoGebra. The Graph can be found here: https://ggbm.at/xpegwwtq. While I know the answers I would like to know how to work it out using algebra.

Here is the Question:
Consider the cubic equation x^3 - kx + (k + 11) = 0, find all the integer values of k for which the equation has at least one positive integer solution for x

Thanks, Taran