Question

121x² - 64y²
pls help someone​

Answer 1

Answer:

16x² – 9y² 36x² – 25y² 16x² – 64y² 121x² – 4y² 49x² – 81y² 49x² – 9y² 64x² – 25y² 9x² – 25y² 4x² – 16y² 25x² – 121y² 16x² – 16y² 100x² – 100y²

Answer 2

Answer:

(11x + 8y) (11x -8y)

Step-by-step explanation:

By using the identity :

a² - b² = (a+b) (a-b)

=√121x² - √64y²

=(11x + 8y) (11x -8y)

Therefore the answer is (11x + 8y) (11x -8y)