Question

Factor: 121x2 - 1

Answer 1

this can be written as
\[(11x)^2 -(1)^2\]

Answer 2

\[\large a^2-b^2= (a+b)(a-b)\]

Answer 3

\[(11x)^2-(1)^2=(11x+1)(11x-1).\]

Answer 4

thank you!

Answer 5

wc!