Answer: +3
Explanation: Start by plugging in the appropriate values for a, b, and c.
You might also want to change the -4b
to plus a negative 4b to avoid confusion.
Also, use parenthses when substituting numbers in for variables.
So we have 3(3) + -4(4) + 2(5).
Once you have plugged in your numbers, first multiply,
and then add from left to right.
So we have (9) + (-16) + (10).
Now add to get (-7) + (10) which is +3.
