subtract 11g +15g2 from 8g3+8g2-g

It is from class 7th ch algebric expression
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1 Answer

me assume that stuf shood be

8x^3 +8x^2 -x -(15x^2 +11x)

=8x^3 +(8-15)x^2  -(x+11x)

=8x^3 -7x^2 -12x
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