Question

How do you simplify `(-1)(-2+3)-(4-9)(-2)`?

Answer 1

`-11`.

Explanation:

We use BIDMAS/PEDMAS for this operation. So,
we start with the brackets, adding all values inside a specific bracket:
`(-2+3) = (1)`,
`(4-9) = (-5)`.

We have added all values within brackets. Now we have:
`(-1)(1)-(-5)(-2)`. We have no exponentials/indices nor divisions, so we move on to multiplications:
`(-1)(1) = (-1)`,
`(-5)(-2) = (10)`.

We have multiplied. Now we've got:
`(-1) - (10) = -11`.

Hope it Helps! :D .

Answer 2

`-11`

Explanation:

Count the number of terms first. There are only 2, but there are parentheses in each term which need to be worked out first.

`color(red)((-1)(-2+3)) color(blue)(- (4-9)(-2))`
=`color(red)((-1) xx (1)) - color(blue)((-5)(-2))`

=`color(red)-1 - color(blue)(10)`

=`-11`