Add or subtract. (4x^2-2x-1)-(-3x^3+2)
To subtract a negative, we can change it to addition and flip all the signs of the second expression:
(4x^2-2x-1) + (3x^3-2)
Now we need to group like terms and combine them:
3x^3 + 4x^2 - 2x - 2
Final Answer: 3x^3 + 4x^2 - 2x - 2
(4x^2-2x-1)-(-3x^3+2)
To subtract a negative, we can change it to addition and flip all the signs of the second expression:
(4x^2-2x-1) + (3x^3-2)
Now we need to group like terms and combine them:
3x^3 + 4x^2 - 2x - 2
Final Answer: 3x^3 + 4x^2 - 2x - 2
that not an option
Since the options are not provided, we can factor out a common term to simplify the expression as follows:
(4x^2 - 2x - 1) - (-3x^3 + 2)
= 4x^2 - 2x - 1 + 3x^3 - 2 (distributing the negative sign)
= 3x^3 + 4x^2 - 2x - 3 (combining like terms)
Therefore, the simplified form of the expression is:
3x^3 + 4x^2 - 2x - 3
To add or subtract polynomial expressions, you need to combine like terms. Here's how you can do it step by step for the given expression:
1. Start by removing the parentheses. Remember that when subtracting a term enclosed in parentheses, you need to change the signs of all the terms within those parentheses.
The given expression becomes:
4x^2 - 2x - 1 + 3x^3 - 2
2. Now rearrange the terms in ascending order of powers of x:
3x^3 + 4x^2 - 2x - 2 - 1
3. Combine the like terms. This means adding or subtracting the coefficients of terms with the same powers of x:
3x^3 + 4x^2 - 2x - 3
Therefore, the simplified form of the expression (4x^2-2x-1)-(-3x^3+2) is 3x^3 + 4x^2 - 2x - 3.