27²×16³×15²÷10²÷4²÷15³
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Answered by
1
Answer:
100*3375/4*3*125+2*1296
=31643217
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5
Answer:
Without actually calculating the cubes, find the value of 28³ + (-15)³ + (13)³.
Answer:
Let a = 28, b = -15 and c = -13, then
a + b + c = 28 - 15 - 13 = 0
__________________
We know that if a + b + c = 0,
then a³ + b³+ c³ = 3abc
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Putting back the values of a, b and c in a³ + b³ + c³ = 3abc
\therefore∴ 28³ + (-15)³ + (-13)³ = 3(28)(-15)(-13)
= 84\times× 195
= 16380.
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