Combine any like terms in the expression. If there are no like terms, rewrite the expression.

Question

10cd2+8cd2–9cd2–9cd2

Answer 1

To combine the like terms in the expression \( 10cd^2 + 8cd^2 - 9cd^2 - 9cd^2 \), we can first group the coefficients of the \( cd^2 \) terms:

\[ 10 + 8 - 9 - 9 \]

Now, let's perform the calculations step by step:

1. \( 10 + 8 = 18 \)
2. \( 18 - 9 = 9 \)
3. \( 9 - 9 = 0 \)

Since the total of the coefficients is 0, the combined expression is:

\[ 0 \]

Therefore, the simplified form of the expression is \( 0 \).