Question

121x^2-25y^2 , 11x^2+5yx (LCM)

Answer 1

You can factor your first term by using the difference of 2 squares (your 2 squares are 121x^2 and 25y^2). On the second term, there's only one common factor for both terms. Knowing this, how would you try to solve the problem?

Answer 2

What you basically need to do is find the GCF because you won't need to multiply it to get your LCM (example, LCM of 24 and 15 is 3(8*5) = 120 because your GCF is 3)

Answer 3

(11x-5y)(11x+5y)?

Answer 4

excellent, and for your second polynomial?

Answer 5

x(121x^2-25y^2)