Question

99)^3 evaluate ... . ​

Answer 1

HEYA USER ❤️

99=100-1

so, (99)³=(100-1)³

by using, (a-b)³=(a³-b³-3ab(a-b)

=100³-1³-3(100)(1)(100-1)

=1000000-1-300(99)

=1000000-1-29700

=970299

Therefore, (99)³=970299

#Be_brainly❣️

Answer 2

SOLUTION ☺️

$(99) {}^{3} \\ \\ = > (99) {}^{3} = (100 - 1) {}^{3} \\ \\ = > (100) {}^{3} - (1) {}^{3} - 3(100)(1)(100 - 1) \: \: (using \: indentity) \\ \\ = > 1000000 - 1 - 300(100 - 1) \\ \\ > > 1000000 - 1 - 30000 + 300 \\ \\ = > 970299 \: \: answer$

hope it helps ✔️❣️