Question

(-2/3)^-13 * (-5/7)^12 = (-5/7)^3x * (-5/5)^-1​

Answer 1

Answer:

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Step-by-step explanation:

(-5/7)^-4 × (-5/7)^12={(-5/7)^3}^x ×(-5/7)^-1

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