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

Jay simplified the expression 3×(3+12÷3)-4.For his first step,he added 3+12 to get 15. What was Jay's error?Find the correct answer
Which book, written by Desiderius Erasmus, criticized Catholic Church officials for focusing on money and power instead of the spiritual needs of individuals? A
Does this look alright?
What is 2/3 of 18? What is 2/3 of 24?
What does "I have a soul of lead" mean in shakespeare?
Solve for x. 4x-5/y=2z
why is the understanding of classification an important life skill
Why is a number raised to the zero power ALWAYS one and never any other number?
According to astronomers, what is a "light year"
What can government do to reduce unemployment?