Question

Multiply and simplify. y^3 . y^5 . y^-2 .y

A. y^-4
B. 1/y^4
C. y^-5
D. 1/ y^3

Answer 1

y^7

Explanation:

y^3 . y^5 . y^-2 . y

= y^3 . y^5 . y^-2 . y^1

= y^( 3 + 5 - 2 + 1 )

= y^( 3 + 5 + 1 - 2 )

= y^( 9 - 2 )

= y^7