What is the solution set of (x – 5) (x + 1) = 16?1 pointA. {–3, 1}B. {–3, 7}C. {1, 7}D. {3, 9}
Question
Solution 1
To solve the equation (x – 5) (x + 1) = 16, follow these steps:
Step 1: Expand the left side of the equation. This gives us x^2 - 5x + x - 5 = 16, which simplifies to x^2 - 4x - 5 = 16.
Step 2: Subtract 16 from both sides to set the equation to zero. This gives us x^2 - 4x - 21 = 0.
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