Question

Please help !!!
Simplify: 2(a^2b^-1)^2 X (4ab^3)^4

Answer 1

4a^4b^-2*216a^4b^12=864a^8b^10

Answer 2

How could 4a^ 4b be ?

Answer 3

sorry that would be 2a^4b^-2

Answer 4

2a^4b^-2*216a^4b^12=432a^8b^10

Answer 5

Thank you can you help me with the other questions too ?

Answer 6

yes...i will try.....

Answer 7

Okay i dont get this one :
-7(2x^2+3x-2)-(x^2+4)
Can you show how you did it so that i can see how to do it ?

Answer 8

-14x^2-21x+14-x^2-4
=-15x^2-21x+10

Answer 9

oh btw for previous problem...4^4 is 256 not 216 so it would be 512 instead of 432

Answer 10

sorry...zealindaus...

Answer 11

Yeh thanks I didnt bother to check if it was right.
3-(2X-1)(3X^2+X-3)-4

Answer 12

3-(6x^3+2x^2-6x-3x^2-x+3)-4
=-6x^3+x^2+7x-4

Answer 13

Thanks I hope its right ill check over them later.
(2x+3y)(x^2-4xy+3y^2)

Answer 14

2x^3-5x^2y-6xy^2+9y^3

Answer 15

3(x+4)

Answer 16

3x
+12

Answer 17

Lol yeh woop wooop got that one right XD

Answer 18

Without using a calculator and showing all ur calculations, determine between which 2 integers \[\sqrt{17}\] lay

Answer 19

\[\sqrt{16} = 4\]
\[\sqrt{25}=5\]

Answer 20

Is this right ?
4xy + 6xyz = 2(2xy)+(3xyz) ?

Answer 21

Its factorizing btw

Answer 22

4xy + 6xyz = 2xy( 2+3z)

Answer 23

sweet_blues u r not right...that will be 2[(2xy)+(3xyz)]

Answer 24

Yeah i got it now thanks sorry people its the first time i have done factorizing and simplifying.

Answer 25

you should not be sorry............

Answer 26

we also make mistakes....

Answer 27

Okays well i have a few more questions to do before bed time if you could help me with these itd be great.
I dont think you can factorize this one : mn+3n+4m+12 ?

Answer 28

n(m+3)+4(m+3)=(m+3)(n+4)

Answer 29

so how was the factorisation????

Answer 30

Idk my teacher just told me to do these for homework but her explenation of how to do them sucked. Says its factorizing on my work sheet ?

Answer 31

haven't u understand the factorisation process?

Answer 32

Last one is 3-3x^2y^2
And i kinda do but finding it hard to use them.When u guys give me the awnsers i look at the question again and work out how u got the awnser u got.

Answer 33

\[3-3x^2y^2=3(1-x^2y^2)=3((1)^2-\[3(1+xy)(1-xy)\](xy)^2)\]

Answer 34

Wow dont you rekon thats a bit hard for a year 7 class

Answer 35

if u practice a lot u will find it easy...

Answer 36

Thanks dude, there was a few of solve x problem i was having trouble with yest wanna have a look ?

Answer 37

happy to notice that u r my fan...

Answer 38

5x-2=2x+10
3(x+7)= -2(x-9)
x^2+6x-13=14
And no problem ur pure genuis man. Im more into literature than math >.<

Answer 39

ist one
3x-12=3(x-4)
2nd one
5x-3
3rd one
x^2+6x-27
x^2+9x-3x-27
(x+9)(x-3)

Answer 40

for the second one
3(x+7)=-2(x-9)
3x+21=-2x+18
3x+2x+21-18=0
5x+3=0

Answer 41

i think u need the factorisation....

Answer 42

Nah ur supose to solve x lol..

Answer 43

ok...

Answer 44

1 st one
5x-2=2x+10
5x-2x=10+2
3x=12
x=12/2
x=4

Answer 45

2nd one
5x+3=0
5x=-3
x=-3/5

Answer 46

3rd one
(x+9)(x-3)=0
x=-9 or 3

Answer 47

oh okay yup thanks. For this one i dont know what she wants me to write ? the degrees or what?

Answer 48

1.1 a hypotenuse
1.2 b hight
1.3 c base
1.4 d right angle

Answer 49

Okay Can you explain how to do this one =/

Answer 50

b=sqrt(119^2-59^2)=103.34
c=sqrt(b^2+41^2)=111.18

Answer 51

sqrt ?

Answer 52

square root

Answer 53

Oh riiiighto Sorry its really late
I am really clueless about these ones >.<

Answer 54

i can give u clue but u have to do it by urself..

Answer 55

gradient finding formula is \[\frac{y_1-y_2}{x_1-x_2}\]

Answer 56

Sure just dont get angry if i get is wrong like i said its really late and it have to be in by tomarrow.

Answer 57

pm = 3 - -2
-4 - -5
am i even on the right path ?

Answer 58

yes ur right

Answer 59

yes...

Answer 60

I dont know what to do next tho =C

Answer 61

ur right...the slope is 5

Answer 62

So thats the awnser.. ?
no = 3- -2
5 + 4

Answer 63

\[\frac{3-(-2)}{-4-(-5)}=\frac51=5\]

Answer 64

similarly for NO it comes 5
and for MN and PO it is 0
so MNOP is a parallelogram.