write each of the following as expanded form :- (1+3x)^3
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Answer:
By using identity
(a+b)³= a³+b³+3a²b+3ab²
=1³+9x³+9x+27x²
Answered by
0
Answer:
by using identity
(a+b)3 = a3+ b3 +3a2b+ 3ab2
= 1 cube+ 9x cube + 9x + 27 x cube
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