Question

Antonio expresses the term 121x^2 as a square with the side lengths of 11x. What is true about the term 121x^2 A. It can also be expressed using a rectangle B. It must be part of a perfect square trinomial C. It is a perfect squareD. It must be part of a difference of squares

Answer 1

If the term 121x^2 can be expressed as a square with side lengths of 11x, that means the term 121x^2 is a perfect square, since there is a expression that, when squared, is equal to 121x^2:

`(11x)^2=11x\cdot11x=121x^2`

Therefore the correct option is C.