factoeize it
64a3- 27b3-144a2b
A1111:
I think that the question is incomplete.
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Answer:
64a³ - 27b³ - 144a²b + 108ab² = (4a - 3b)³
Step-by-step explanation:
Complete Question would be Factorise the
64a³ - 27b³ - 144a²b + 108ab²
64a³ - 27b³ - 144a²b + 108ab²
= (4a)³ - (3b)³ - 3(4a)²(3b) + 3(4a)(3b)²
= (4a)³ + (-3b)³ + 3*(4a)²(-3b) + 3(4a)(-3b)²
Using ( x + y)³ = x³ + y³ + 3x²y + 3xy²
Here x = 4a & y = - 3b
= (4a - 3b)³
64a³ - 27b³ - 144a²b + 108ab² = (4a - 3b)³
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