Simplify y^-2/y^-7. Write your answer with a positive exponent only.

y^5

Step-by-step explanation:

y^-2/y^-7

When we divide exponents with the same base, we subtract the exponents

y^ ( -2 - -7)

y^ ( -2+7)

y^ 5

y^2

Step-by-step explanation:

One way of doing this problem is to multiply both numerator and denominator by y^7.  Doing this we get:

  y^(-2+7)

= y^2

 y^(-7+7)

answer: do we write it

step-by-step explanation:

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