Question

Simplify 7.5y^4 x 9y^2

Answer 1

67.5
`y^(6)`

Explanation:

using the rule of exponents

•
`a^(m)` ×
`a^(n)` =
`a^((m+n))`

given

7.5
`y^(4)` × 9y²

= 7.5 × 9 ×
`y^(4)` × y²

= 67.5 ×
`y^((4+2))`

= 67.5
`y^(6)`