3x^2+6-2x+5x-4x^2+9
Simplifying the expression:
3x^2 - 4x^2 + 5x + 6 - 2x + 9
Combine like terms:
-x^2 + 3x + 15
Final answer: -x^2 + 3x + 15
To simplify the expression 3x^2 + 6 - 2x + 5x - 4x^2 + 9, we can combine like terms:
Combine the x^2 terms:
3x^2 - 4x^2 = -x^2
Combine the x terms:
-2x + 5x = 3x
Combine the constant terms:
6 + 9 = 15
Putting it all together, the simplified expression is -x^2 + 3x + 15.