Math, asked by ayushsingh2389, 1 year ago

evaluate each of the following- 98 cube​

Answers

Answered by prabhashankar330
2

Step-by-step explanation:

98^3

(100 - 2)^3

(a-b)^3 = (a-b) (a^2 +b^2 + ab)

= (100 - 2) (10000 +4 +200)

= 1000000 + 400 + 20000 - 20000 - 8 - 400

= 1020400 - 20408

= 999992


ayushsingh2389: thank you I have solve
arshdeepsingh59: ok
Answered by arshdeepsingh59
2

Answer:

98cube=(100-2)cube

using(a-b)cube=acube-bcube-3ab

(100)cube-(2)cube-3(100)(2)

1000000-8-600(100-2)

1000000-8-60000+1200

941192

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