Cube of 4.5 by using identity
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Answer:
(4.5)^3
=(4+0.5)^3
=4^3+0.5^3+3×4×0.5(4+0.5)
=64+0.125+6(4.5)
=64.125+27
=91.125
the identity used is (a+b)^3=a^3+b^3+3ab(a+b)
hence , 4.5^3=91.125
this is the final answer
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