Add the expressions.

Expression 1: -3k+4k³-2
Expression 2: 9k²-3k³+4k-3

□k³+□k²+□k+□

2 answers

To add the expressions \( -3k + 4k^3 - 2 \) and \( 9k^2 - 3k^3 + 4k - 3 \), we will combine like terms.

Step 1: Write the expressions

Expression 1:
\[ -3k + 4k^3 - 2 \]

Expression 2:
\[ 9k^2 - 3k^3 + 4k - 3 \]

Step 2: Combine like terms

Now we group and combine the terms based on their degree (i.e., \( k^3 \), \( k^2 \), and \( k \)):

  • \( k^3 \) terms: \[ 4k^3 - 3k^3 = (4 - 3)k^3 = 1k^3 \]

  • \( k^2 \) terms: \[ 0 + 9k^2 = 9k^2 \]

  • \( k \) terms: \[ -3k + 4k = (-3 + 4)k = 1k \]

  • Constant terms: \[ -2 - 3 = -5 \]

Step 3: Write the final result

Combining all of these results, we have:

\[ 1k^3 + 9k^2 + 1k - 5 \]

Thus, we can fill in the blanks as follows:

\[ 1k^3 + 9k^2 + 1k - 5 \]

So the final answer is:

\[ \boxed{1k^3 + 9k^2 + 1k - 5} \]

The last one is k*+*□
What would be in the box?