Is this correct?
The problem says perform the indicated operation.
(9x^2-7x-66)+(8x^2+9x)
I came up with this for the answear
-66+2x+17x^2
or could it be
17x^2+2x-66
To solve this problem, you need to combine like terms by adding or subtracting coefficients of the same degree.
Let's look at each step in detail:
Step 1: Rewrite the given expression:
(9x^2-7x-66)+(8x^2+9x)
Step 2: Combine the terms with the same degree:
(9x^2 + 8x^2) + (-7x + 9x) - 66
Step 3: Simplify the coefficients:
17x^2 + 2x - 66
So, the correct answer is:
17x^2 + 2x - 66
Your second suggestion, 17x^2+2x-66, is the correct simplified form of the given expression. Well done!