Respuesta :
x²-3x=x(x-3)
x²-9=x²-3²=(x-3)(x+3)
∴the highest common factor of x²-3x and x²-9 is x-3
Hope my answer helped u :)
x²-9=x²-3²=(x-3)(x+3)
∴the highest common factor of x²-3x and x²-9 is x-3
Hope my answer helped u :)