Question

please answer this question...​

Answer 1

Step-by-step explanation:

a) -6 +13+(-7) =0

now apply identity if a+b+c =0

then a³ +b³+c³=3abc

so,

-6³+13³+(-7)³ =3×(-6)×13×(-7)= 1638

b) apply a³+b³ =(a+b)³ -3ab(a+b)

so,

(-21)³+(28)³=(-27+28)³-3(-27)(28)(-27+28)

=1³-(-2268)

=1+2268

=2269

plz like the answer...

Answer 2

Answer:

10.a ka answer...... 1638....

b. ka answer...,. 2269....

Step-by-step explanation:

Hope, this answer can help you❤❤