Question

(9x^2-6x+)-(x^2+4x-39)
whats the difference

Answer 1

To find the difference of the two expressions \( (9x^2 - 6x + ) - (x^2 + 4x - 39) \), we first need to clarify and ensure that the first expression is complete. Let's assume it meant to be \( 9x^2 - 6x + 0 \) for simplicity.

So we will compute:

\[
(9x^2 - 6x + 0) - (x^2 + 4x - 39)
\]

Now, distribute the negative sign through the second expression:

\[
9x^2 - 6x - x^2 - 4x + 39
\]

Now, combine like terms:

1. Combine the \( x^2 \) terms:
- \( 9x^2 - x^2 = 8x^2 \)

2. Combine the \( x \) terms:
- \( -6x - 4x = -10x \)

3. The constant term is \( +39\).

Putting it all together, we get:

\[
8x^2 - 10x + 39
\]

Thus, the difference is:

\[
\boxed{8x^2 - 10x + 39}
\]