Question

simplify (2x-y+5)square-(2x+y+5)square please solve fast​

Answer 1

Answer:

$- 8xy - 20y$

Step-by-step explanation:

$(2x - y + 5) ^{2} - (2x + y + 5) {}^{2} = (2x - y + 5 + 2x + y + 5)(2x - y + 5 - 2x - y - 5) = (4x + 10)( - 2y) = - 8xy - 20y$