Question

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

Answer 1

y^2

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 2

y^5

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