The guy rejects my way of solving it, but my way of solving the problem took me under 30 seconds. Watch the video for the guy's solution; read the comments for my solution.
Wednesday, September 17, 2025
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You're given the trinomial x^2 - 3x + p, and you're also given that (x + 4) is a factor. When you factor out the trinomial, you instantly know it has to be some form of (x + a)(x + b). You also instantly know that ab = p and (a + b) has to equal -3. So if x + 4 is a factor, then b has to be -7 (because 4 + -7 = -3), which means 4•-7 = -28, so the answer is B: p = -28.
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