Simplifying the Expression: (4x^2 - x - 3) - (x^2 + 2x - 5)
This expression involves subtracting one polynomial from another. To simplify it, we'll follow these steps:
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Distribute the negative sign: The minus sign in front of the second parenthesis means we multiply each term inside by -1.
(4x^2 - x - 3) -1 (x^2 + 2x - 5)
This becomes:
4x^2 - x - 3 - x^2 - 2x + 5
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Combine like terms: Now we group the terms with the same variable and exponent.
(4x^2 - x^2) + (-x - 2x) + (-3 + 5)
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Simplify: Perform the addition and subtraction operations.
3x^2 - 3x + 2
Therefore, the simplified form of the expression (4x^2 - x - 3) - (x^2 + 2x - 5) is 3x^2 - 3x + 2.