jjhamza07 jjhamza07
  • 18-08-2021
  • Mathematics
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Please explain step by step, thank you

Please explain step by step thank you class=

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AnishAdhikari
AnishAdhikari AnishAdhikari
  • 18-08-2021

Step-by-step explanation:

[tex]x {}^{4} - 3x {}^{2} - 4 \\ = {x}^{4} - (4 - 1) {x}^{2} - 4 \\ = x {}^{4} - 4x {}^{2} + x {}^{2} + 4 \\ = {x}^{2}( {x}^{2} - 4) + 1( {x}^{2} - 4) \\ =( {x}^{2} - 4)( {x}^{2} + 1) [/tex]

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