Answer:
Identify and combine the x^2 terms: The terms are x^2,4x^2,x^2. The combination is 6x^2
Indentify and combine the x terms:The terms are 2x, x, 3x. The combination is 6x
Indentify and combine the constants: The constants are 3,9, 11. The combination is 23.
The simplified expression becomes: 6x^2+6x+23
