Simplify.
8m+4n+7m−2n
What is the answer?
a.17mn
b.15m + 6n
c.15m + 2n
d.m + 2n
Which one makes sense to you?
No. There's nothing in the original statement about multiplying anything.
It is C
15m+6n
To simplify the expression 8m + 4n + 7m - 2n, you can combine the like terms. Like terms are the ones that have the same variable(s) raised to the same power(s). In this case, the like terms are the terms with "m" and the terms with "n".
To combine the terms with "m", add the coefficients (numbers in front of "m"): 8m + 7m = 15m.
To combine the terms with "n", add the coefficients: 4n - 2n = 2n.
So, after combining the like terms, the simplified expression becomes 15m + 2n.
Therefore, the correct answer is (c) 15m + 2n.