Answer:
To find the sum of the given expressions, we need to combine like terms.
The first expression is 2x^2 - 3x - 4, and the second expression is 3x^2 + 4x - 6.
To add these two expressions together, we add the coefficients of the like terms.
Starting with the x^2 terms, we have 2x^2 + 3x^2 = (2 + 3)x^2 = 5x^2.
Moving on to the x terms, we have -3x + 4x = (-3 + 4)x = x.
Finally, for the constant terms, we have -4 - 6 = -10.
Therefore, the sum of 2x^2 - 3x - 4 and 3x^2 + 4x - 6 is:
5x^2 + x - 10
In this calculation, we combined like terms by adding their coefficients. The resulting expression represents the sum of the two given expressions.
Explanation: