25(3x - y) ^(2) - 16(5x + 3y) ^(2) = 25(​

Question

`25(3x - y) ^(2) - 16(5x + 3y) ^(2) =`
25(​

Answer 1

-175x^2-630xy-119y^2

Explanation:

Answer 2

25(3x-y)²-16(5x+3y)²=25(9x²-6xy+y²)-16(25x²+30xy+9y²)=

=225x²-15xy+25y²-400x²-480xy-144y²=-175x²-630xy-119y²