With out actual calculating the cubes
(-12)+(7)³+(5)³
Answers
Answered by
1
Answer:
Question : (-12)³ + (7)³ + (5)³
Answer = -1260
Step-by-step explanation:
- let a = -12
- b = 7
- c= 5
- consider a + b + c = -12 + 7 + 5
= 0
FORMULA
- If a + b + c = 0 then a³ + b³ + c³ = 3abc
Answer
- so, (-12)³ + 7³ + 5³ = (3)(-12)(7)(5)
= -1260
- I think question is (-12)³ + (7)³ + (5)³
- hope this answer is helpful to you
Answered by
7
Answer:
According to the formula:-
a³ + b³ + c³ = 3abc.
Now,
=> (-12)³ + (7)³ + (5)³
=> 3 (-12)(7)(5)
=> 3 (-420)
=> -1260 ans.
Step-by-step explanation:
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