Factor by any method.
-$$y ^ { 2 } - \frac { 49 } { 121 }$$
A) $\left( y ^ { 2 } + \frac { 7 } { 11 } \right) \left( y ^ { 2 } - \frac { 7 } { 11 } \right)$
B) $\left( y + \frac { 7 } { 11 } \right) \left( y - \frac { 7 } { 11 } \right)$
C) $\left( y - \frac { 7 } { 11 } \right) \left( y - \frac { 7 } { 11 } \right)$
D) $\left( y + \frac { 49 } { 11 } \left( y - \frac { 49 } { 11 } \right) \right.$

Question

Quizplus · Accepted Answer

This is a difference of squares, where $a^2 - b^2 = (a+b)(a-b)$. Here, $a = y$ and $b = \frac{7}{11}$, so the factored form is $(y + \frac{7}{11})(y - \frac{7}{11})$.

Factor by Any Method y2−49121y ^ { 2 } - \frac { 49 } { 121 }y2−12149​

Factor by Any Method $y ^ { 2 } - \frac { 49 } { 121 }$