Answer:
For subtraction: 6x^2-21x+18
For addition: 6x^2+3x-18
Step-by-step explanation:
1) Use distributive property:
3(2x-3)=3*2x - 3*3=6x-9
2) Multiply both terms: (You didn't put an operation in between x and 2 so I'm doing both addition and subtraction.)
SUBTRACTION: (6x-9)*(x-2)=6x^2-9x - 12x+18 Combine like terms --> 6x^2-21x+18
ADDITION: (6x-9)*(x+2)=6x^2-9x+12x-18 Combine like terms --> 6x^2+3x-18
