hahaha11111 hahaha11111
  • 04-02-2022
  • Mathematics
contestada

How to factor this expression: x^2-9?

Respuesta :

ItsDingy
ItsDingy ItsDingy
  • 04-02-2022

Answer:

(x+3)(x-3)

Step-by-step explanation:

rewrite "9" as 3^2

so it is x^2-3^2

You use the difference of squares: a^2-b^2=(a+b)(a-b)

apply it: (x+3)(x-3)

Answer Link

Otras preguntas

The first and last term of an A. P are 1 and 121 respectively. Find the number of terms in the A.P and the common difference between them if the sum of the term
use dimensional analysis $3,000 to convert US Cash allowance into Peruvian currency.​
if sinA=√3-1/2√2,then prove that cos2A=√3/2 prove that
how many types of lavatory there is?
find the value of the following 8711×99+8711​
In a clinic, a doctor charges Rs 1200 for every 15 minutes. If he attends to the clinic 2 hours per day for seven days, how much will he earn during a week?
why is unit of power is called derived unit?​
mon sujet prefere home work pls help me​
1) The brave soldier was rewarded ...... a medai. (by/with/in/from) 2) I think it ........ in the evening. (be rain/raining/rained/will rain) 3) The man ..... i
Write an e-mail to produce your biodata for job ?