Math, asked by charukeshn, 1 year ago

How to evaluate 99 cube by using (90plus9)

Answers

Answered by arush1733

1

Answer:

90 cube -729000

9 cube - 729

add them

Answered by haridasan85

2

Answer:

(90 +9)^3=90^3+3x90^2 x 9+3x90x9^2+9^3

= 729000+218700+21870+729

=970299

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