Question

(-5/7)^-4*(-5/7)^12={(-5/7)^3}^x*(-5/7)^-1, find the value of x

Answer 1

Answer:

we know that when base are equal then power will also equal

therefore -4+12=3x+(-1)

=》8=3x-1

=》8+1=3x

=》9=3x

=》9/3=x

=》3=x

hence the x=3