Question

using expansion formula find cube 19 ​

Answer 1

Step-by-step explanation:

THE SQUARE IS - 361

AND CUBE IS - 6859

Answer 2

Step-by-step explanation:

Expansion Formula :

=19²

=19×19

=19×(10+9)

=(19×10)+(19×9)

= 190+171

= 361

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