Simplifying the Expression (4x³ - 12x² - 5) - (-8x² + 4x + 3)
This expression involves subtracting two polynomials. To simplify it, we need to follow these steps:
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Distribute the negative sign: The negative sign in front of the second polynomial means we multiply each term inside the parentheses by -1.
(4x³ - 12x² - 5) + (8x² - 4x - 3)
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Combine like terms: Identify terms with the same variable and exponent and combine their coefficients.
4x³ + (-12x² + 8x²) - 4x + (-5 - 3)
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Simplify: Perform the indicated operations.
4x³ - 4x² - 4x - 8
Therefore, the simplified form of the expression (4x³ - 12x² - 5) - (-8x² + 4x + 3) is 4x³ - 4x² - 4x - 8.