Question

using identity.find the value of (2x+3y)(2x-4y)​

Answer 1

Answer:

$(2x + 3y)(2x - 4y) \\ \\ = 4 {x}^{2} - 8xy + 6xy - 12 {y}^{2} \\ \\ = 4 {x}^{2} - 2xy - 12 {y}^{2} \\ \\ = 2(2 {x}^{2} - xy - 6 {y}^{2} ) \\ \\ = 2 {x}^{2} - xy - 6 {y}^{2}$

Answer 2

Answer:

-10xy

Step-by-step explanation:

(2x+3y)(2x-4y)

= 5xy×(-2xy)

= 5xy × -2xy

= -10xy