Answer:
Step-by-step explanation: Hi there.
We can treat this problem just like a simple subtraction problem, like 3-2
It helps to form the equation like this:
x^2+9x+18
- (1x+06)
Remember that the operation changes the sign: -1x-6
The result is x^2+8x+12, and it is already in standard form.
Have a nice day! :)