Question

factories:25(2x+y)²-16(x-y)²​

Answer 1

Answer:

84x² + 9y² + 132xy is the answer

Step-by-step explanation:

25(2x+y)²-16(x-y)²​

= 25(4x² + y² +4xy ) -16(x² + y² -2xy)

= 100x² + 25y² + 100xy - (16x² + 16y² - 32xy)

= 100x² + 25y² + 100xy - 16x² - 16y² + 32xy

= 84x² + 9y² + 132xy