barbara25
barbara25 barbara25
  • 04-04-2018
  • Mathematics
contestada

factor each polynomial y²-81

Respuesta :

idkwhat1
idkwhat1 idkwhat1
  • 04-04-2018
I'm if it's right but.....

you could square root the whole expression and get (y-9)(y-9)=(y-9)^2
Answer Link
altavistard
altavistard altavistard
  • 04-04-2018
y^2-81 is the difference of two squares, namely, the difference of y squared less 9 squared.  Therefore,

y^2-81 = (y-9)(y+9)
Answer Link

Otras preguntas

Which case ruled that when acting as a private person even the president of the united states is not above the law? a. altria group b. citizen's united c. nixon
When you have two shapes to compare on a coordinate plane, you can determine the scale factor, knowing that the transformation was a dilation. Generate instruc
Can someone explain the answer to this problem? Answer: 6 in. Carlos wants to ship 24 small packages that are in the shape of a cube. The volume of each cube i
The process that merges the gametes from two parents is
Which is the best revision of this sentence? Staring at the sun, I hurt my eyes. A. Stared at the sun and hurt my eyes. B. I hurt my eyes by staring at the sun.
A brick weighs 2.7 kilograms. If Henry has 12 bricks, what is the total weight of all the bricks?
Shoshana zuboff studied how papermakers' jobs were changed by the introduction of computers. what was one of her findings?
can you relly much help me do this
In recent years, republicans who have failed to toe the party line
Most Canadians have _____ ancestors. A.European B.Inuit C.Asian D.Native American