solve this equation (729x^3-1)
Answers
Answered by
1
Answer:
729x³-1
(9x) ³-1³
using identity,
a³-b³=(a-b)(a²+b²+ab)
=(9x-1) (81x²+1+9x)
Answered by
1
Answer:
(9x - 1) (81x² + 9x + 1 )
Step-by-step explanation:
729x³ - 1
= (9x)³ - (1)³
using identity:- a³ - b³ = (a - b) (a² + ab + b²)
= (9x - 1) [(9x)² + (9x)(1) + (1)² ]
= (9x - 1) (81x² + 9x + 1 )
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