without actually calculating the cubes find the value of 16^3-9^3-7^3
Answers
Answered by
9
Answer:
3024
Step-by-step explanation:
You may know the formula a³+b³+c³-3abc = (a+b+c)(a²+b²+c²-ab-bc-ca)
And if a+b+c = 0, then a³+b³+c³=3abc
Here, a=16 b=(-9) c=(-7)
And, a+b+c = 0
So, 16³-9³-7³ = 3 × 16 × (-9) × (-7) = 3024
Answered by
2
Answer:
3024.please mark me as brainaliest
Similar questions