In the equation: (x^-5)/(x^-7)

Question

In the equation: (x^-5)/(x^-7)

Why is the x^-7 moved to the numerator and changed to a positive instead of x^-5?
Or at least, how do you know which number needs to be changed to a positive number

Answer 1

Please never go on brainly because I got harassed so I answered a question of somebodies and im an 11 year old girl in middle school sixth grade right this girl says be my girlfriend! she also says i wanna make out with u make out and she also says im in college and she kept saying them over 10 times so ye if u dont want that to happen dont go on there please.

also @Fat Albert dont call yourself fat never call yourself fat i mean i have so much belly fat i mean i weigh 142 so ye

Answer 2

The exponent of the denominator must always be positive, so the x^-7 is moved to the numerator and changed to a positive. This is because when dividing two numbers with exponents, the denominator's exponent must be positive.