Expand (4x-7)3 using identity
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Answered by
3
Answer:
3×4x - 3×7
12x-21 is the answer friend...
Answered by
1
Answer:
(4x-7)³.
It is in the form of (a-b)³=a³-b³-3ab(a-b).
Where a=4x & b=7.
(4x-7)³=(4x)³-(7)³-3(4x)(7)(4x-7).
=64x³-343-336x²+588x. (Because -×-=+).
=64x³-336x²+588x-343.
I think this is your answer.
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