1.

Without actually calculating find the value of 25 cube minus 75 cube + 50 cube

Answer»
take \:  {25}^{3} common \: from \: each \: term
then \: we \: get \:  {25}^{3} (1 -  {3}^{3}  +  {2}^{3})
now \: we \: can \: easily \: simpify \:
{25}^{3} (1 - 27 + 8) =  {25}^{3}( - 18)
{25}^{3}  = 15625 \:
answer \: is \: 15625( - 18) \:  =  - 281250
i \: tried \: m y \: level \: best \:  \: hope
it \: helps \: you


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