Respuesta :

Answer:

Step-by-step explanation:

this is the difference of two squares,  which there is a formula for

(a+b)(a-b)  

100[tex]x^{2}[/tex]-9

rewrite into squares

[tex](10x)^{2}[/tex] - [tex]3^{2}[/tex]

then a = 10x

and b = 3

(10x + 3 )(10x - 3 )