Math, asked by rajeshbhu555, 9 months ago

is question ko solve karo

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Answers

Answered by MikeAlpha

1

Answer:

(i)8(b-4) (ii)

Step-by-step explanation:

(i)21b-32+7b-20b

=8b-32

=8(b-4)

(ii)-z²+13z²-5z+7z³-15z

= 7z³+12z²-20z

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