Question

if 2 X + 3 Y is equal to 11 and X Y is equal to minus 1 find the value of bracket open 2 x -3 Y bracket close whole square

Answer 1

in this question
we apply the formula.
(a-b)^=(a+b)^-4ab. (^=square of the digit)
(2X-3Y)^=(2X+3Y)^-4