Question

plz solve this question ​

Answer 1

Hey there !!

$a{}^{3}+b{}^{3}+c{}^{3}-3abc$

According to Formula

$55{}^{3}-25{}^{3}-30{}^{3}$

=3×55×(-25)×(-30)

165×750

123750

RHS

Prove

LHS

$55{}^{3}=166,375$

$(-25){}^{3}=-15,625$

$(-30){}^{3}=-27,000$

Subtract

166375-15625-27000

=150750-27000

>123750

LHS=RHS

✌✌Hope it's help uh✌✌

Answer 2

a{}^{3}+b{}^{3}+c{}^{3}-3abca

3 +b3+c3−3abc

According to Formula

55{}^{3}-25{}^{3}-30{}^{3}553−25

3

−30

3

=3×55×(-25)×(-30)

165×750

123750

RHS

Prove

LHS

55{}^{3}=166,37555

3

=166,375

(-25){}^{3}=-15,625(−25)

3

=−15,625

(-30){}^{3}=-27,000(−30)

3

=−27,000

Subtract

166375-15625-27000

=150750-27000

>123750