Question

(3x
3
+4x
2
)+(3x
3
−4x
2
−9x)

Answer 1

Answer: 3x+3

Step-by-step explanation:(3x+3+4x2) + (3x3-4x2-9x)

Simplify:

(3x+3+4x2) + (3x3-4x2-9x)

Since two opposites add up to 0, remove them from the expression. Then calculate the problem.

3x+3+9x-9x

Remove the opposites.

Answer:3x+3