Which of the following is NOT a solution (x-5)(x-3)(x+3)(x+9)= 0
Correct answer: D. -5
- A. 5
- B. 3
- C. -3
- D. -5
Explanation
In order to solve this nonlinear equation, we will apply the zero product theorem. That means that each variable factor in the original equation needs to be set to zero. x - 5 = 0; x - 3 = 0; x + 3 = 0; x + 9 = 0 x∈ {5,3,-3,-9}
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