From the product of (ab+b+1)and (b-5) subtract 4ab2 + 9b2

From the product of (ab+b+1)and (b-5) subtract 4ab2 + 9b2

 [(ab+b+1)(b-5)] – (4ab² + 9b²)

[(ab+b+1)b - (ab+b+1)5] - (4ab² + 9b²)

 ab² + b² + b – 5ab – 5b – 5 – 4ab² - 9b²

-3ab² - 8b² - 4b -5ab – 5 Ans

  • 0

[(ab+b+1) (b-5)] - [4ab2 +9b2]= [ ab2+b2+b-5ab-5b-5] -4ab2 -9b2

= -3ab2-8b2+b-5ab-5b-5

  • -1
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