Question

Simplify the expression y * y^-2 * y^5

Answer 1

y^4

Explanation:

In all three factors, the base is just y. To simplify this expression, add together the exponents of y: 1 - 2 + 5 = 4. Result: y^4

Answer 2

add the exponents

y^(1-2+5)

y^(4)