When a = 3, ax + X-1 = 5, then when a = - 3, ax - X=__ Note: square is the square of X

When a = 3, ax + X-1 = 5, then when a = - 3, ax - X=__ Note: square is the square of X

a=3
ax^2+x-1=3x^2+x-1=5
3x^2+x=6
a=-3
ax^2-x=-3x^2-x=-(3x^2+x)=-6