Question

Find the LCM of the set of polynomials.
121x^2-4y^2, 11x^2+2yx

Answer 1

\[121x^{2}-4y ^{2}, 11x ^{2}+2yx\]

Answer 2

first one is the difference of two squares. it factors as
\[121x^2-4y^2=(11x+2y)(11x-2y)\] second factors as
\[11x^2+2xy=x(11x+2y)\]

Answer 3

you are looking for the LCM so take each factor you see and multiply them together.
you only need the \(11x+2y\) once, so take
\[x(11x+2y)(11x-2y)\] as LCM

Answer 4

oh okay, thanks so much!

Answer 5

yw