Hi can you check my answer?
Add or subtract.
(5x^2+x-3)-(-2x^3+4)
A: -2x^3+5x^2+x+7
B: -2x^3+5x^2+x+1
C: 2x^3+5x^2+x=7
D: 2x^3+5x^2+x+1
A: -2x^3+5x^2+x+7 is correct.
To add or subtract the given expression, you need to combine like terms.
First, let's distribute the negative sign inside the parentheses of the second expression:
-(-2x^3 + 4) becomes +2x^3 - 4.
Now, let's rewrite the expression by combining like terms:
(5x^2 + x - 3) + (2x^3 - 4)
Combining the x^2 terms, we have:
5x^2 + 2x^3 + x - 3 - 4
Combining the x terms, we have:
2x^3 + 5x^2 + x - 7
Therefore, the correct answer is D: 2x^3 + 5x^2 + x - 7.