Given - x + 2Y = 5, then the value of 5 (x-2y & # 178;) - 3 (x-2y) - 60

Given - x + 2Y = 5, then the value of 5 (x-2y & # 178;) - 3 (x-2y) - 60

5(X-2Y)²-3(X-2Y)-60
=5*(-5)²-3*(-5)-60
=125+15-60
=80