Question

(3x^2+4x-2) + (-7x^2-10x+17)

Write out each step used.

Show all the steps used to simplify the expression.

Provide the resulting degree and classification of the example.

Explain why the polynomial is or is not closed over addition or subtraction based on the problem provided.

Answer 1

Any ideas?

Answer 2

Subtract them.
Do you see any like terms?

Answer 3

@SolomonZelman the symbol between the polynomials is "+"

Answer 4

Yeah uh 4x and 10x

Answer 5

Ok add, he got my point either way. Ik technically I was incorrect, patrol.

Close 4x and -10x.
any other like terms?

Answer 6

The numbers with exponets?

Answer 7

Yes, which ones?

Answer 8

@BasedBoyIsaiah, try to set it like this,

3x^2 + 4x -2
+
-7x^2 -10x +17

------------------

ADD.

Answer 9

@BasedBoyIsaiah, can you add now?

Answer 10

To add (or subtract) polynomials you add (or subtract) their similar terms. Similar terms are two monomials that are exactly alike or are the same except for their numerical coefficients, also called like terms.

Answer 11

I'd add the like terms yea?

Answer 12

Yes.

Answer 13

3x^2 + 4x -2
+
-7x^2 -10x +17

--------------------------------
-4x^4 -6+15

Answer 14

What happened to the x on -6?

Answer 15

also x^2 + x^2 is not equal to x^4?

Answer 16

I forgot about the 6x and I dont add the exponets?

Answer 17

It would just be ^2 on each number still?

Answer 18

Yes.

Answer 19

so -4x^2 -6x+15

Answer 20

Yes.

Answer 21

The degree is 2 right?

Answer 22

Yes.