Example 12 - Find the value of k, if x – 1 is a factor - Check if factor

  1. Chapter 2 Class 9 Polynomials
  2. Serial order wise
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Example 12 Find the value of ๐‘˜, if x โ€“ 1 is a factor of 4๐‘ฅ๏ทฎ3๏ทฏ+ 3๐‘ฅ๏ทฎ2๏ทฏโˆ’4๐‘ฅ+๐‘˜ Let p ๐‘ฅ๏ทฏ= 4๐‘ฅ๏ทฎ3๏ทฏ+ 3๐‘ฅ๏ทฎ2๏ทฏโˆ’4๐‘ฅ+๐‘˜ It is given x โ€“ 1 is a factor of 4๐‘ฅ๏ทฎ3๏ทฏ+ 3๐‘ฅ๏ทฎ2๏ทฏโˆ’4๐‘ฅ+๐‘˜ p(1) = 0 4 (1)๏ทฎ3๏ทฏ+ 3 (1)๏ทฎ2๏ทฏ โˆ’4 1๏ทฏ+๐‘˜=0 4 + 3 โˆ’ 4 + k=0 4 โˆ’ 4 + 3 + ๐‘˜=0 3 + ๐‘˜=0 ๐‘˜=โˆ’3 โˆด ๐’Œ=โˆ’๐Ÿ‘

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