Tajette Tajette
  • 25-04-2020
  • Mathematics
contestada

polynomial in standard form. (9b-1)(9b+1)

Respuesta :

choccocakee
choccocakee choccocakee
  • 25-04-2020
You have to use the method of FOIL (first, outer, inner and Last)

9b*9b is first

9b*1 is outer

-1*9b is inner

-1*1 is last

Together, they form the expression 81b^2 + 9b - 9b - 1

Collect like terms and the answer is 81b^2 - 1
Answer Link

Otras preguntas

Why has Thailand lost half of its forest?
MC)Read the sentence below and answer the following question: During the whole of a dull, dark, and soundless day in the autumn of the year, when the clouds h
If 1 mole of HCl(aq) was reacted with 2 moles of NaOH(aq), the pH of the solution would be? Acid or base
Why has Thailand lost half of its forest?
List at least 3 positive and at least 3 negative effects of urban growth in the middle ages.
Hola como estas,cual es tu nombre wey?
Partnerships with resourceful members of the community are more difficult for teachers to obtain because community members A. have little desire to par
Dogs conditioned to salivate to stimulation of the thigh also begin to salivate when stimulated on other body parts. this best illustrates
What is the answer to this?
Determine the solution