(m^2-m-4)+(m-5) Add Or Subtract ?
Remove all parenthesis and combine like-terms:
m^2 - m - 4 + m - 5.
m^2 - 9 = (m+3)(m-3).
To simplify the expression (m^2 - m - 4) + (m - 5), you need to combine like terms.
First, distribute the "+" sign to each term within the second parentheses:
(m^2 - m - 4) + m - 5
Next, rearrange the terms and group the like terms together:
m^2 + (-m + m) + (-4 - 5)
The -m and m terms cancel each other out, so that leaves us with:
m^2 - 9
Therefore, the simplified expression is m^2 - 9.
To determine whether to add or subtract the given expressions, we need to look at the signs between them.
In the given expression, we have (m^2 - m - 4) + (m - 5). To simplify this expression, we combine the like terms.
First, let's remove the parentheses:
m^2 - m - 4 + m - 5
Now, combine the like terms:
(m^2 - m + m) + (-4 - 5)
The m term cancels out, and the constants can be added:
m^2 - 4 - 5
Simplifying further gives:
m^2 - 9
Therefore, the final simplified expression is m^2 - 9.
So, in this particular case, we used the addition operation to combine the terms.