Answer:
The correct answer is "18k+27r". A further explanation is provided below.
Step-by-step explanation:
The given expression is:
⇒ [tex]-9(-2k-3r)[/tex]
As we know the identities, such as:
- [tex]Plus(+)\times Plus(+)=Plus (+)[/tex]
- [tex]Minus(-)\times Minus(-)=Plus(+)[/tex]
- [tex]Plus(+)\times Minus(-)=Minus(-)[/tex]
- [tex]Minus(-)\times Plus(+)=Minus(-)[/tex]
By applying the above identities in the given expression and after opening the brackets, we get
= [tex]-9(-2k-3r)[/tex]
= [tex]18k+27r[/tex]
