Simplifying the Expression: (3x^2 + 2x + 1) - (x^2 - 3x + 4)
This expression involves subtracting two trinomials. Let's break down the steps to simplify it:
1. Distribute the Negative Sign
First, we need to distribute the negative sign in front of the second set of parentheses. Remember that multiplying a negative by a negative results in a positive, and multiplying a negative by a positive results in a negative:
(3x^2 + 2x + 1) - (x^2 - 3x + 4) = 3x^2 + 2x + 1 - x^2 + 3x - 4
2. Combine Like Terms
Now we can combine the terms that have the same variable and exponent:
(3x^2 - x^2) + (2x + 3x) + (1 - 4)
3. Simplify
Finally, perform the addition and subtraction operations:
2x^2 + 5x - 3
Therefore, the simplified form of the expression (3x^2 + 2x + 1) - (x^2 - 3x + 4) is 2x^2 + 5x - 3.