Question

Help me please i need the answer without any detail's i just need the answer no explaination

Answer 1

We have to solve the following expression:

`-45b^(-2)/15b^5\cdot4b^5`

We can rearrange the factors as:

`\begin{gathered} -45b^(-2)/15b^5\cdot4b^5 \\ \\ -(45)/(b^2)\cdot(1)/(15b^5)\cdot4b^5 \\ \\ -(3\cdot15)/(b^2)\cdot(1)/(15)\cdot4 \\ \\ -(12)/(b^2) \\ \\ -12b^(-2) \end{gathered}`

Answer: -12b^(-2)