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desirjeanpierre
desirjeanpierre desirjeanpierre
  • 12-02-2017
  • Mathematics
Answered

Multiply -6x^3(5x^2-6x+7),,,and Expand (9b+9)^2

Verified Answer :

ChandrikaP ChandrikaP
  • 25-02-2017

1)
-30x^5+36x^4-42x^3

2)(9b+9)^2 by  ( a+b)^2=a^2+b^2+2ab
49b^2+49+162b

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