Which expression is equivalent to the expression 4x^2-16x^2?? (2x^2+4x) (2x^2-4)
4x^2 (x-2) (x+2)
x^2 (x-4) (x+4)
4 (x^2-2) (x^2+2)​

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Which of those sequences is a geometric sequence

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?