Question

WILL FAN AND MEDAL FOR HELP ON QUESTIONS!!!!!

Answer 1

what are the questions? :/

Answer 2

@YouDontKnowMeOo

Answer 3

thats alot. lol

Answer 4

can you help me on some @YouDontKnowMeOo ?

Answer 5

you got to post one at a time lol

Answer 6

is it too small?

Answer 7

just zoom in on the page to make it bigger

Answer 8

@kevinhunterwood69

Answer 9

@DelTaVsPi

Answer 10

each queation is susposed to have it's own thing

Answer 11

question*

Answer 12

Its own post.

Answer 13

ok

Answer 14

ill make a new one and tag you in it

Answer 15

Which question are we solving ? :)

Answer 16

the first

Answer 17

Alright

Answer 18

So coefficients means the number in front of the 'x'
So just look in front of those 'x' values :)

Answer 19

C? 5,2,-4

Answer 20

5x^2 + 2x - 4
What do you think the coefficients are?

Answer 21

yes !
You are correct ^^

Answer 22

Thanks what about the next question

Answer 23

Except for (-4) because there is no pro numeral following the coefficient (-4)

Answer 24

ok

Answer 25

Okay so we have: 7x^2 - x -2 - (-6x^3 + 3)

Answer 26

In this scenario, we just have to expand and simplify, just be careful of that minus ^^

Answer 27

okay

Answer 28

can you walk me through it?

Answer 29

Okay sure ^^

Answer 30

Firstly, I would expand -(-6x^3 + 3 ) first

Answer 31

okay

Answer 32

So we get something like: +6x^3 - 3

Answer 33

yep

Answer 34

Now just collect like terms :)

Answer 35

would you get rid of the plus sign?

Answer 36

yeah you can get rid of it, I just put it in there to show you that I have expanded the minus sign inwards ^^

Answer 37

wouldn;t it be +6x^3 +3 ?

Answer 38

Ah that's the thing
- (6x^3 + 3 = -6x^3 - 3

Answer 39

oh alright

Answer 40

Why?
What does - x + = ?
Remember these rules
- x - = +
- x + = -
+ x - = -
+ x + = +

Answer 41

yeah i know those

Answer 42

So have you resolve the question, by collecting the like terms?

Answer 43

would it be 3x^3 ?

Answer 44

How did you get 3x^3?

Answer 45

By simplifying the second part

Answer 46

I show you how I did it and just follow through my steps :)

Answer 47

okay

Answer 48

= 7x^2 - x - 2 - ( -6x^3 + 3 )
= 7x^2 - x - 2 + 6x^3 - 3
= 6x^3 + 7x^2 - x - 5

Answer 49

Is there anything you don't understand, please point it out ^^

Answer 50

ok i think i get it now

Answer 51

Okay no problem, just refer back to this previous example that we have do together to just briefly understand the concept :)

So next question?

Answer 52

yep

Answer 53

so you dont have to scroll back up

Answer 54

Okay cool

Answer 55

So in this question 15), we are dealing with powers, ideally 10's

Answer 56

So what do you think 2.3 x 10^1 = ?

Answer 57

do we add the powers of ten?

Answer 58

In this case, we are multiplying by powers of ten's

Answer 59

and add the regular numbers?

Answer 60

ok

Answer 61

There isn't much adding going on in Q15) its all multiplying :)

Answer 62

would the answer be 9.3• 10^7 or 9.3•10^6

Answer 63

hmm... would you like to try again, that answer seems way off :D

Answer 64

here
2.3 x 10^ 1 = ?

Answer 65

ok

Answer 66

We'll break it down

Answer 67

they aren't like terms thought