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CBSE Class 9 Answered

|x⁴-x²-12|=|x⁴-9|-|x²+3|
Asked by avani2713 | 08 Jul, 2022, 01:52: AM
Expert Answer
open vertical bar straight x to the power of 4 minus straight x squared minus 12 close vertical bar equals open vertical bar straight x to the power of 4 minus 9 close vertical bar minus open vertical bar straight x squared plus 3 close vertical bar
open vertical bar straight x to the power of 4 minus 4 straight x squared plus 3 straight x squared minus 12 close vertical bar equals open vertical bar open parentheses straight x squared minus 3 close parentheses open parentheses straight x squared plus 3 close parentheses close vertical bar minus open vertical bar straight x squared plus 3 close vertical bar
open vertical bar open parentheses straight x squared minus 4 close parentheses open parentheses straight x squared plus 3 close parentheses close vertical bar equals open vertical bar open parentheses straight x squared minus 3 close parentheses open parentheses straight x squared plus 3 close parentheses close vertical bar minus open vertical bar straight x squared plus 3 close vertical bar
open vertical bar straight x squared minus 4 close vertical bar space open vertical bar straight x squared plus 3 close vertical bar equals open vertical bar straight x squared plus 3 close vertical bar space open square brackets open vertical bar open parentheses straight x squared minus 3 close parentheses close vertical bar minus 1 close square brackets
open vertical bar straight x squared minus 4 close vertical bar space open vertical bar straight x squared plus 3 close vertical bar equals open vertical bar straight x squared plus 3 close vertical bar space open vertical bar open parentheses straight x squared minus 3 close parentheses minus 1 close vertical bar
open vertical bar straight x squared minus 4 close vertical bar space open vertical bar straight x squared plus 3 close vertical bar equals open vertical bar straight x squared plus 3 close vertical bar space open vertical bar straight x squared minus 4 close vertical bar

So comma space it space is space true space for space all space straight x.
Answered by Renu Varma | 12 Jul, 2022, 05:32: PM
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