Factor the four-term polynomial.
mn - 15 + 3m - 5n
i hate school anyone agree say yes?
First try to get m out:
m(n+3) -5(n+3)
You take it from there
To factor the four-term polynomial mn - 15 + 3m - 5n, we can group the terms in pairs and factor out the common factors.
First, let's group the terms mn and 3m together. Both terms have a common factor of m, so we can factor it out:
mn + 3m = m(n + 3)
Next, let's group the terms -15 and -5n together. Both terms have a common factor of -5, so we can factor it out:
-15 - 5n = -5(3 + n)
Now we have factored out the common factors for both pairs of terms. Combining the results, we get:
mn - 15 + 3m - 5n = m(n + 3) - 5(3 + n)
So the factored form of the given polynomial is m(n + 3) - 5(3 + n).