Question

Factorisation
remove the bracket from the following
-9(-2k -3r)​

Answer 1

The correct answer is "18k+27r". A further explanation is provided below.

Explanation:

The given expression is:

⇒
`-9(-2k-3r)`

As we know the identities, such as:

• 
  `Plus(+)* Plus(+)=Plus (+)`
• 
  `Minus(-)* Minus(-)=Plus(+)`
• 
  `Plus(+)* Minus(-)=Minus(-)`
• 
  `Minus(-)* Plus(+)=Minus(-)`

By applying the above identities in the given expression and after opening the brackets, we get

=
`-9(-2k-3r)`

=
`18k+27r`