Without actually calculating the cubes, find the value of each of the followin
(1) (-12)+(7) + (5)3
(ii) (28) + (-15)3 +(-13)3
Answers
Answered by
2
Answer :
- -1260
- 16380
Explanation:
- 1: (−12)3+(7)3+(5)3
- Here, −12+7+5=0,
- So, (−12)3+(7)3+(5)3=3(−12)(7)(5) = −1260
- 2: (28)3+(−15)3+(−13)3
- Here, 28+(−15)+(−13)=0,
- So, (28)3+(−15)3+(−13)3=3(28)(−15)(−13)
- 84∗195 = 16380
I Hope this helps you
Answered by
1
Answer:
(1) (-12)+(7) + (5)3 = 120
(ii) (28) + (-15)3 +(-13)3 = -5544
Step-by-step explanation:
(1) (-12)+(7) + (5)3
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