can anyone give this answer it's argent
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here is the correct answer bro
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Mudit1234567890:
it is right but her should also come -5ab
ok bro
but pls mark as brsin list plssss
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( ab + b + 1) * ( b - 5) -( 4 ab ^2 + 9 b ^2)
= ab ^2 - 5 ab + b^2 - 5 b + b - 5 - 4 ab ^2 - 9 b ^2
= -3 ab ^2 - 8 b^2 - 5ab - 4b - 5
= ab ^2 - 5 ab + b^2 - 5 b + b - 5 - 4 ab ^2 - 9 b ^2
= -3 ab ^2 - 8 b^2 - 5ab - 4b - 5
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