please answer this question
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Answered by
1
Answer:
342
Step-by-step explanation:
(9(1)-2)^3-(-1)^3
=7^3-(-1)^3
=343-1
=342
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Answered by
0
Answer:
the answer is 50
Step-by-step explanation:
(9a-b)³ - c³
it is given that -:
a=1
b=2
c= -1
therefore,
(9X1-2)² - (-1)³
(9-2)² - (-1)³
(7)² - (-1) [hence, (-1)³= (-1)]
49 + 1
50
therefore, the answer is 50
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