Question

(4x²-3x+7)-(-3x²+4x-6)

Answer 1

teacher is telling me im wrong please someone show me where
here is what I got
using the column method add equations together
4x²-3x+7
3x²+4x-6
_________
7x²-x+13 ending result cf of 1st & last term
7x²=(7x)(x)
13=(-1)(-13)

7(x-1)(x-13)

Answer 2

Your mistake is that you added them, where you should subtract.

Answer 3

You should multiply each term of the second parenthesis by -1 before you add the like terms to the the first parenthesis .

Answer 4

Does that help?

Answer 5

ty

Answer 6

You're welcome!

Answer 7

after multiplying by -1 and adding them together i got
7x^2-7x+13
which is the same answer I had to start with the teacher said was wrong

Answer 8

Look carefully!! It's not the same.

Answer 9

ur right I forgot about the -7x

Answer 10

so then this is the answer 7x^2-7x+13

Answer 11

Exactly!

Answer 12

do we factor it down any further

Answer 13

No, that's all. It can't be factored.