Question

If f(x) = 2x^2 – 4x + 5 and g(x) = 2x – 2, what is f(x) + g(x) ?

2x^2 + 2x – 3

2x^2 + 6x – 7

2x^2 – 6x + 7

2x^2 – 2x + 3

Answer 1

well if this helps. add -4x+5 to 2x-2 and the result will be the equation

Answer 2

fx)+g(x)=2x^2-2x+3

Answer 3

your only adding the like numbers between the two

Answer 4

-4x+5
2x-2
you see how they both look similar. so you can add them. or "combine likes terms".

Answer 5

ok hold on lemme get some paper

Answer 6

2x^2 isnt addable because no other number has x^2. so you leave that alone

Answer 7

ok

Answer 8

\[2x ^{2}-4x+ 5+2x-2\]

Answer 9

add that together? ^^

Answer 10

so when you write it out it all looks like one expression you see? so you just combine "like terms" and as you see 4x is negative but 2x is positive. 5 is positive and 2 is negative so you have to do the math.

Answer 11

you write it out. and you just add the terms that look alike.

Answer 12

thank you for helping me

Answer 13

no problem.

Answer 14

you get it?

Answer 15

no still writing one sec

Answer 16

ok... 2x^2 – 2x + 3

Answer 17

right

Answer 18

can u get this?
8x+4-2x-2

Answer 19

lemme try

Answer 20

when i combine 8x and 2x do i include the negative sign or no?

Answer 21

yeh

Answer 22

k

Answer 23

idk wth i just did XD

Answer 24

6 + 6 can't be the answer

Answer 25

8x + -2x = 6x

Answer 26

right

Answer 27

and then 4 + 2 = 6

Answer 28

i dunno im an idiot XD sorry

Answer 29

4-2=2
if there is a negative sighn in front of the 2 then it is negative. just how 2x was negative

Answer 30

ok hold on

Answer 31

8x+4-2x-2

Answer 32

8x-2x 4-2

Answer 33

so its...6x + 2

Answer 34

right

Answer 35

:D YUSH!!

Answer 36

thanks dude :P

Answer 37

no problem