szemtelenmano szemtelenmano
  • 22-04-2021
  • Mathematics
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How would the expression x-9 be rewritten using Difference of Squares?

Respuesta :

kennadeefisher
kennadeefisher kennadeefisher
  • 22-04-2021

Answer:

Step-by-step explanation:

(x+3)(x-3)

x squared and -9 are both square numbers.

the square root of x^2 is x

the square root of -9 is 3. so you just need to write (x+3)(x-3)

you can check by expanding the brackets and the middle x terms should cancel out

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