Evaluate 98³ Using Identities
Answers
Answered by
3
Answer:
ANSWER
(98)
3
(100−2)
3
∴(a−b)
3
=a
3
−b
3
−3a
2
b+3ab
2
(100−2)
3
=(100)
3
−(2)
3
−3×(100)
2
×2+3×100×2
2
=1000000−3−60000+1200
=941192.
Step-by-step explanation:
follow me
Attachments:
Answered by
1
Answer:
Evaluate :98^3
Using identity :(a+b)^3=a^3 -b^3-3ab(a-b)
(100-2) = (100)^3 + (-2)^3 + 3 (100) (-2) (100-2)
=1000000 - 8 - 600 + 98
=999,490
Similar questions