Question

Simplify: (3x + 2y) (4x + 3y) - (2x - y) (7x - 3y)​

Answer 1

${x }^{2} + 8xy + 9xy + 6 {y}^{2} - 14 {x}^{2} - 7xy - 6xy - 3 {y}^{2} = xy + 3xy + 3 {y}^{2} - 2 {x}^{2} = 4xy + 3 {y}^{2} - 2 {x}^{2}$