Question

find the value of 30^3-29^3​

Answer 1

Answer:

2611

Step-by-step explanation:

As $a^{3}- b^{3} = (a-b)(a^{2} + ab + b^{2})$

here a=30

b=29

so $(30^{3}-29^{3}) = (30-29)(30^{2} + 30*29 + 29^{2})$

=> $(30^{2} + 870 + 29^{2} )$

=> $(900+870 +841)$

=>2611

Answer 2

Answer:

2611

Step-by-step explanation:

we have: a^3-b^3= (a-b)(a^2+ab+b^2)

30^3-29^3

=(30-29)(30^2+30*29+29^2)

=1(900+870+841)

=2611

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