Solve this equation =>
8n²+10n-1272
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Answered by
5
Heya user,
-----> 8n² + 10n - 1272 = 0
==> 2 [ 4n² + 5n - 636 ] = 0
==> 2 [ 4n² + 53n - 48n - 636 ] = 0;
==> 2 [ n ( 4n + 53 ) - 12 ( 4n + 53 ) ] = 0;
==> 2 ( n - 12 )( 4n + 53 ) = 0;
==> n = 12, -53/4 ;
-----> 8n² + 10n - 1272 = 0
==> 2 [ 4n² + 5n - 636 ] = 0
==> 2 [ 4n² + 53n - 48n - 636 ] = 0;
==> 2 [ n ( 4n + 53 ) - 12 ( 4n + 53 ) ] = 0;
==> 2 ( n - 12 )( 4n + 53 ) = 0;
==> n = 12, -53/4 ;
Anonymous:
Thank you
Np
Answered by
5
8n²+10n-1272=0 ,
divide by 2 ,
4n²+5n-636=0,
4n²-48n+53n-636=0,
4n(n-12)+53(n-12)=0,
(n-12)(4n+53)=0,
n-12=0 or 4n+53=0,
n=12. or n= -53÷4
divide by 2 ,
4n²+5n-636=0,
4n²-48n+53n-636=0,
4n(n-12)+53(n-12)=0,
(n-12)(4n+53)=0,
n-12=0 or 4n+53=0,
n=12. or n= -53÷4
I didn't get what that yellow thing appears on my answer
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And I m sorry for not mentioning that this n it of AP
ARGH!!!! But np
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