Question

(-5/7) power -4 * (-5/7)power 12 = (-5/7)power 3x * (-5/7)power -1

Answer 1

-5/7 power -4 * -5/7 power 12 = -5/7 power 3x *=-5/7 power -1

if their base are same and they are in multiplication then we can add the powers so it will be like this. -4 + 12 = 3x + -1

8 = 3x + -1

the 1 is in negative so it will come on left side in positive so.

8 + 1 = 3x

9 = 3x

so the value of x =. x = 9/3 = 3