Question

if 2 X + 3 Y is equals to 11 and x y is equals to minus 1 find the value of 2 x minus 3 y whole to the power 2​

Answer 1

Answer:

125

Step-by-step explanation:

(2x+3y) = 11 and  xy= -1

(2x+3y)^2 = 121

4x^2+9y^2+2(-1) =121

4x^2+9y^2 = 121+2

4x^2+9y^2 =123

(2x-3y)^2 = (2x)^2+(3y)^2-2xy

             = 123 -2(-1)

(2x-3y)^2  = 125

Answer 2

Answer:

125 is the answer