Question

(7x2 + x + 9) - (3x2 + 4x - 5)

Answer 1

what do you think you do first?

Answer 2

you would distribute the negative into the equation

Answer 3

so you after distributing that you would have (7x2 + x + 9) (-3x2 - 4x + 5)

Answer 4

No. Without the parenthesis. Then it would be correct.

Answer 5

Then distribute those

Answer 6

is it
4x2 - 3x + 4

Answer 7

whats the answer

Answer 8

You would have \[\large \large 7x^2 + x + 9 - 3x^2 +4x - 5\]

Answer 9

Now you want to combine like term. So what can we combine?

Answer 10

yeah you got i gold I'll let you take it from here

Answer 11

Here's a tip. We can only combine terms where the exponent powers are the same.
So can we combine 7x^2 and -3x^2?

Answer 12

4x^2 + 5x + 4 right?

Answer 13

Yes. That would be your final answer, since that cannot be simplify anymore.