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  • 12-11-2019
  • Mathematics
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What is 6b3 – 8b2 – 10b + 7 subtracted from 4b4 + 12b3 + 5b2 + 6?

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marcthemathtutor
marcthemathtutor marcthemathtutor
  • 12-11-2019

Answer:

4b^4 + 6b^3 + 13b^2 + 10b -1

Step-by-step explanation:

4b^4 + 12b^3 + 5b^2 + 6 - (6b^3 – 8b^2 – 10b + 7)

= 4b^4 + 12b^3 + 5b^2 + 6 - 6b^3 + 8b^2 + 10b - 7

= 4b^4 + ( 12b^3 - 6b^3) + (5b^2 + 8b^2) + 10b + (6 - 7)

= 4b^4 + 6b^3 + 13b^2 + 10b -1

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