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問！！！🆘🆘
想問打勾✅的那個算式是怎麼來的
感謝好心人的支援！
2.【知識點】多項式不等式。
x^(x+3)(x+1)(x-1)(x-6)
<(3x+4)(x+3)(x+1)(x-1)(x-6)
>[(x²)-(3x+4)](x+3)(x+1)(x-1)(x-6)<0
>(x²-3x-4)(x+3)(x+1)(x-1)(x-6)<0
>(x+1)(x-4)(x+3)(x+1)(x-1)(x-6)<0
>(x+3)(x+1)*(x-1)(x-4)(x-6)<0
V ⇒-3<x<1或4<x<6但x≠-1,
故滿足不等式的整數解為−2、0、5,共三個整數解,
故選(4)。
Answers
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juga melihat pertanyaan-pertanyaan ini 😉
(x+1)(x-1)(x-6)<0 >(x²-3x-4)(x+3)(x+1)(x-1)(x-6)<0 >(x+1)(x-4)(x+3)(x+1)(x-1)(x-6)<0 >(x+3)(x+1)*(x-1)(x-4)(x-6)<0 V ⇒-3<x<1或4<x<6但x≠-1, 故滿足不等式的整數解為−2、0、5,共三個整數解, 故選(4)。](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1606127/webp_5B33DC03-2CB3-44EC-B1FE-849B2EE1EC02.webp?Expires=1750165652&Signature=jGpMNQYLlXWvJjs0c2ZPP3-Ngc-Nnu9oXRtt6a72PJzvThZ5pvq~uPpBbHz13xYDNVMmJCMDsCTRdwvGMcRK8MKSFz1yd7AwPqaj-aebneQK4KcFKMotM1iDRukK-dZY-XXjGH-2peWs~BrWLdwPWyvEnOwOfrg5icEJqBBxPSbsVEPzBPwAbeNRiGQRLYtk8KywSRKh3QsPZE~KKsWxMdjSHgJHgIWCWL~YGL62Ipn1Y0XEgmJfx29tP6au9Ao~bDOmZmBjpLgxRZn-1JPTBR0K1kiz0S1L4rhLOzmvrB03m9z0x5pZ-pDTzR0JsmuWRmsMd4Mr6lWOjNXuWDqH6w__&Key-Pair-Id=K2W722D70GJS8W&Expires=1750165652&Signature=ByKGu5RhmFmsU3CwIbAWgR~AuZiQKZEEHaen~ErYm51P5DDeC3bhMp-9hIpxW94KhUAqpf50-UZAeqkfQjLy2Rr3yhSEUoFgibkWnFZrya2ZmsVxenFyz8TW6U6kukcNnV3OQGjEo4k7DEQza-vJXUoQcOvtWBQS4J-hNThl3hmVpRNQlz4lPRF-9YnZinKC58SEXAuKSLlDU8Pwc6B-WKm5-X7QYPnxVnWV~d3Nw5jxyRcIN7V66XIfnaM2j3dXzIQzcWgv9iPuwxYKr~MJqkVTqT~Coy51FlVEIjgp6bNeQcWud4TEe8n7GeKJ7S0yMGkoQYPIvtlta4a52jdKJg__&Key-Pair-Id=K2W722D70GJS8W){kind=link}
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有解出來了