Question

4(a+b)square-9(a-b)square​

Answer 1

Answer:

$4( {a + b})^{2} - 9( {a - b})^{2} \\ 4( {a}^{2} + {b}^{2} + 2ab) - 9( {a}^{2} + {b}^{2} - 2ab) \\ 4 {a + 4 } {b}^{2} + 8ab - 9 {a}^{2} - 9 {b}^{2} + 18ab \\ - 5 {a}^{2} - 5 {b}^{2} + 26ab$