hahaha11111 hahaha11111

04-02-2022
Mathematics

contestada

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

Respuesta :

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

With which of the following lines from a constitutional amendment is this cartoon most directly aligned?

is -8.56 a rational or irrational number?

Because the Gulf Stream carries warm water up from the Gulf of Mexico, what effect does it have

Which of the following statements is not true? An angle bisector can be a median of a triangle. A perpendicular bisector can be an altitude of a triangle. A

A test consists of 10 problems and students are told to answer any 4 of these questions. In how many different ways can they choose the 4 questions?

Which equation has the same solution as x^2-6x-14=0 A: (x+3)^2=23 B: (x-3)^2=23 C: (x+3)^2=5 D: (x-3)^2=5

A citizen belonging to an island nation in South East Asia, where Tagalog is widely spoken:

one similarity between the declaration of the independence and the bill of right is that both

Esmerelda bought a bag of jelly beans. There were 24 green jelly beans, which made up 8%, percent of all the jelly beans in the bag. How many jelly beans were i

Find the slopes of the asymptotes of the hyperbola with the following equation. 36 = 9x ^{2} - 4y^{2}