Math, asked by Kuttanpilla, 5 hours ago

without actually calculating the cubes find the value of
 {55}^{3}  -  {25}^{3}  -  {30}^{3}

Answers

Answered by poojalmehta12
1

Answer:

123750

Step-by-step explanation:

We know that if (a+b+c)=0 then a³+b³+c³=3abc

in this a=55, b=-25, c= -30

55 +(-25)+(-30) = 55-55 = 0

so 55³ - 25³ - 30³ = 3(55)(-25)(-30)

=165(750)

=123750

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