a3 + b3 + c3 - 3abc
if a = - 1, b = 2, c = 3
Answers
Answered by
2
Answer:
we will have a great night
Answered by
8
Answer:
52
Step-by-step explanation:
Using identity,
a³ + b³ + c³ - 3abc = (a + b + c)(a² + b² + c² - ab - bc - ca)
According to Question,
a = -1 .... b = 2 .... c = 3
So, (a + b + c)(a² + b² + c² - ab - bc - ca) = (-1 + 2 + 3)[-1² + 2² + 3² - (-1×2) - (2×3) - (3×-1)]
= 4 [1 + 4 + 9 - (-2) - 6 - (-3)]
= 4 (1 + 4 + 9 + 2 - 6 + 3)
= 4 * 13 = 52
∴ The answer is 52...
So friend, this was your answer...Hope this helps...Pls mark is as the BRAINLIEST!
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