X^4-10x^2+9 how do I factor this?

1 answer:

8 0

X^2 = y and rewrite your exercise

y^2 -10y +9 = y*y -y -9y +9 = y(y -1) -9(y -1) = (y -9)(y -1)
and now rewrite using this above wrote note of x^2 = y

so will get (y -9)(y -1) = (x^2 -9)(x^2 -1)

and this mean that

x^4 -10x^2 +9 = (x^2 -9(x^2 -1)

hope helped

You might be interested in

Fill in all missing angle measures.<br> Will give Brainiest

ziro4ka [17]

1=120 obtuse

2=60 acute

3=120 obtuse

5=60 acute

6= 60 acute

7=120 obtuse

8 0

3 years ago

You set up 240 chairs in four rows. How many chairs are in one row?

lukranit [14]

Answer:

Step-by-step explanation:

5 0

3 years ago

You and your friend get the same magazine. You spend $15 for twelve issues. Your friend pays $1.50 per issue but gets the first

Allushta [10]

He will get 12 issues too. Since he spent 15 dollars in total you would divide that by 1.50 to see how many he actually purchased and it comes out to 10 meaning that he got 10 issues with the money. Now he got two free issues so you would add them to the ones he purchased, so 10 + 2 which would equal 12. So in total he got 12 issues. I hope that helps and wasn't confusing.

8 0

3 years ago

Rewrite the function by completing the square. f(x)= x^{2} -9 x +14f(x)=x 2 −9x+14

Bess [88]

Answer:

$f(x)=(x-4.5)^{2}-6.25$ or $f(x)=(1/4)(2x-9)^{2}-6.25$