(x²)³ -729 Factorise this
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(x²)³-729=(x²)³-9³
=(x²-9)(x⁴+9²+9x²)
={(x)²-3²}(x⁴+81+9x²)
=(x-3)(x+3)(x⁴+9x²+81)
=(x+3)(x-3)(x⁴+9x²+81)
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Answer:
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Step-by-step explanation:
→ (x²)³-729
→ x²*³-729
→ x^6-729
→ (x-3)(x²+3x+9)(x+3)(x²-3x+9)
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