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Find the sum of all values of \(x\) such that \(f(x) = -5.\)

 Dec 9, 2020
 #1
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2x + 7 = -5

x = -6

 

-x^2 - x + 1 = -5

-x^2 - x + 6 = 0

x = -3, x = 2

 

Sum of solution is (-6) + (-3) + 2 = -7.

 Dec 9, 2020
 #2
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sorry but it is incorrect

 Dec 10, 2020

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