Question

(x+y)(3x+4y)-(5x-4y)(-x-6y)​

Answer 1

Answer:

comparing by a x + b y + c is equal to zero a equal 1 b equal minus 15 c is equal to 110

Answer 2

Answer:

$8x {}^{2} + 33xy - 20y {}^{2}$

Explanation:

$x(3x + 4y) + y(3x + 4y) - 1(5x - 4y)( - x - 6y)$

$3x {}^{2} + 4xy + y(3x + 4y) - 1(5x - 4y)( - x - 6y)$

$3x {}^{2} + 4xy + 3xy + 4y {}^{2} - 1(5x - 4y)( - x - 6y)$