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Find the greatest integer value of b for which the expression (9x^3+4x^2+11x+7)/(x^2+bx+88) has a domain of all real numbers.

 Apr 9, 2022
 #1
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Denominator cannot equal 0

 

(x^2+bx+88)       soooo      b^2 - 4(88)    >=0

                                         b^2 = 352

                                         b=+-18.76             largest integer 18

 Apr 9, 2022

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