#1

(3xy2)3 x (-4x2y)

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

(2x2y2)2

EDIT: EXPONENTS ARE COLORED ORANGE

Could someone show and explain step-by-step how to solve this?

My parents are making me do grade 9 math before I go to grade 9 so that I'm prepared and such, but I don't have anyone to teach me.

If no one is willing to help, could someone point me to a website that could?

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

(2x2y2)2

EDIT: EXPONENTS ARE COLORED ORANGE

Could someone show and explain step-by-step how to solve this?

My parents are making me do grade 9 math before I go to grade 9 so that I'm prepared and such, but I don't have anyone to teach me.

If no one is willing to help, could someone point me to a website that could?

#2

Math/Science Thread is a good place to start.

#3

I did one step for you on the first one.

(27x^3y^6) x (-4x^2y)

(27x^3y^6) x (-4x^2y)

*Last edited by ttreat31 at Jul 2, 2009,*

#4

Why don't you do your own homework TS?

Having somebody figure it out for you will not allow you the chance to use your mind to attack situations and practice your problem-solving techniques.

Having somebody figure it out for you will not allow you the chance to use your mind to attack situations and practice your problem-solving techniques.

#5

NOTE:

I'm very tired. Even though my entire career revolves around math, I may have made a simple mistake because I'm as tired as I am. Took me about 10 seconds.

#6

^ signifies exponent

(3xy^2)^3 X (-4x^2 y)

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

(2x^2 y^2)^2

(27x^3 y^6) (-4x^2 y)

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

(4x^4 y^4)

(-108x^5 y^7)

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

(4x^4 y^4)

-108xy^3

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

4

-27xy^3

(3xy^2)^3 X (-4x^2 y)

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

(2x^2 y^2)^2

(27x^3 y^6) (-4x^2 y)

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

(4x^4 y^4)

(-108x^5 y^7)

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

(4x^4 y^4)

-108xy^3

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

4

-27xy^3

*Last edited by metalh3ad88 at Jul 2, 2009,*

#7

^ signifies exponent

(3xy^2)^3 X (-4x^2 y)

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

(2x^2 y^2)^2

(27x^3 y^6) (-4x^2 y)

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

(4x^4 y^4)

(-107x^5 y^7)

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

(4x^4 y^4)

-107xy^3

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

4

27*-4=-108

#8

I know it's a bit blurry but you should be able to make it out.

Edit: I kept this tab open a lot longer than I thought! Anyways I have explanations at the bottom.

*Last edited by Saf1 at Jul 2, 2009,*

#9

27*-4=-108

ya i realized that right before you said it

#10

I know it's a bit blurry but you should be able to make it out.

Edit: I kept this tab open a lot longer than I thought! Anyways I have explanations at the bottom.

Wow, thanks!

Makes sense now :>

#11

Wow, thanks!

Makes sense now :>

Haha, glad you could read it!

#12

oh, my parents tried to pull that on me "practise maths"

"...but i haven't learnt it yet"

"read the textbook"

"...no!"

"...but i haven't learnt it yet"

"read the textbook"

"...no!"

#13

oh, my parents tried to pull that on me "practise maths"

"...but i haven't learnt it yet"

"read the textbook"

"...no!"

xd

My textbook is complete balls when it comes to explanations, as it's supposed to be used alongside an actual teacher.

it helps a crapload, though. Last summer I did the grade 8 math textbook, and the entire year I got 95% (The highest they can give out here - 100% can't be given until highschool) in math. I outscored the asian kids :>

#14

I outscored the asian kids :>

Haha awesome, that's the spirit! But watch out, the wild ones will throw rice at you!