Question

21b - 3²+7b-20b

Solve it ^^

Answer 1

Heya!
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Here is your answer :-

Question : 21b-3²+1b-20b

= 21b + 7b -20 b -3 ²

= 28b - 20b- 3²

=8b- 3²
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Hope this helps!

Answer 2

Hi ,

It is an expression can't be solved ,

But we simplify it ,

21b - 3² + 7b - 20b

= 21b + 7b - 20b - 3²

= ( 21 + 7 - 20 ) b - 9

= 8b - 9

I hope this helps you.

:)