Question

Multiply and simplify –4mp2 • (–2p) • (–2m2p)

Answer 1

It's actually –4mp^2 • (–2p) • (–2m^2p)

Answer 2

@Compassionate @beccaboo333

Answer 3

drop the brackets and put all the things in order, like this

–4*-2*-2*m*m^2*p*p*p^2

try simplifying now

Answer 4

just do it like that?

Answer 5

Try it and show your result

Answer 6

–8m^3p^4

Answer 7

Very good! But you made a mistake with -4*-2*-2

Answer 8

-4*-2*-2m^3p^4

finish from there

Answer 9

–16m^3p^4 ?

Answer 10

Yep! Good job.

Answer 11

yay :) thanks :) Can you check this one for me?

3xy^4z^2 • 5x^2yx

Is it 8x^4y^5z^2 ?

Answer 12

very good again! but remember, the numbers are multiplying, not adding. 5*3 not 5+3...

5*3x^4y^5z^2

Answer 13

oh so it's 15x^4y^5z^2

Answer 14

Yep!

Answer 15

Cool
So for this:
Express the area of this triangle as a monomial.
The height is 7x , the base is 4x.
Is the answer 28x^2 ?

Answer 16

heres the image if you need it: http://static.k12.com/calms_media/media/330000_330500/330322/1/e400e4cb5eb1c58c16380e42acfbfd536563065f/MS_ALG_S2_03_03_test_Q4and5_question.gif

Answer 17

Almost correct!

Remember area of a triangle is half base times height.

You only did base times height.

Answer 18

ie your area is double the correct area.

Answer 19

ooohhh Yeah I knew that so it's 14x^2

Answer 20

Very good.

Answer 21

If x = 4 cm, find the area of this triangle.
http://static.k12.com/calms_media/media/1346000_1346500/1346478/1/760f5fd77ed4664eebe31f309c39bbd3bfa9bb5b/HS_A1G2_S2_155217.jpg

Answer 22

I honestly don't get this one.

Answer 23

Do it the same way as the last for now.

Answer 24

240 cm2 ?

Answer 25

Do it same as the last, show your work

Answer 26

Worry about the x later :)

Answer 27

oh there was a weird glitch and I lost everything for a minute but I figured it out, I got the answer right I think it was 16 or something.

Answer 28

It'd be 1/2*7x*8x = 28x^2

x is 4, so plug that in... 28*4^2 = 448

Answer 29

aw wow I got it wrong then whoops. oh well I still passed

Answer 30

Good :)

Answer 31

thanks anyways :)

Answer 32

Welcome :)