Math, asked by nikki011, 10 months ago

Anyone!? this one?? plss, (click on the pic u'll be able to see the whole pic)
thnxx❤️​

Attachments:

Answers

Answered by ScienceFACT
2

Answer:

108 .

Step-by-step explanation:

Given:

→ a + b + c = 9 .

→ a² + b² + c² = 35 .

Now,

We know that,,

°•° ( a + b + c )² = a² + b² + c² + 2( ab + bc + ca ) .

==> 9² = 35 + 2( ab + bc + ca ) .

==> 81 - 35 = 2( ab + bc + ca ) .

==> ab + bc + ca = 46/2 .

•°• ab + bc + ca = 23 .

Again,,

We know that,

°•° a³ + b³ + c³ - 3abc = ( a + b + c )( a² + b² + c² - ( ab + bc + ca ) .

= ( 9 )( 35 - 23 ) .

= 9 × 12 .

= 108 .

Hence, it is solved.

Similar questions