Factorise: 27 x
3 − 63 x
2 + 49 x −
343
/27
Answers
Answered by
0
Answer:
{(9x-7)^3}÷27
Step-by-step explanation:
Answered by
1
27x³ - 63x² 49x - 343/27
a³ - 3a²b + 3ab² -b³ = (a - b)³
⇒ 27x³ - 63x² 49x - 343/27 = (3x - 7/3)³
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