Question

Can u pls help me with this question

Answer 1

Answer:

$-k^2+7k$

Step-by-step explanation:

Using the given equations, we must find $C-B$

Start by substituting the given values into the expression:

$C-B\\k-3-(k^2-6k-3)$

Now, take the terms out of the parentheses.

$k-3-(k^2)-(-6k)-(-3)\\k-3-k^2+6k+3$

Please note that two negatives make a positive

$k-3-k^2+6k+3$

Combine like terms:

$-k^2+7k$