Answer
(y+11)(y-11)
Work Step by Step
We use the formula for the difference of squares to apply to this question.
The difference of squares formula is:
$(a-b) (a+b) = a^{2} - b^{2}$
= $(y)^{2}$ - 121 *** Take the square root of 121 which is 11. Becuase 11 × 11= 121
= $(y)^{2}−11^{2}$
In the given formula let y represents a and 11 represents b.
$(y)^{2}−11^{2}$ = (y+11)(y-11)
