Question

can anyone explain a Algebra problem to me? (3Sqrt7-3sqrt3)^2

Answer 1

I just need to know how the steps to solve it

Answer 2

thanks Night watcher

Answer 3

\[(3\sqrt{7}-3\sqrt{3})^{2}\]

Answer 4

thanks you so much I just need to know how to do the problem like the formula or something

Answer 5

@zepdrix

Answer 6

Simply this one (3√7)

Then simplify this one (3√3)

Subtract both answers

Then square it

Answer 7

3sqrt7 and 3sqrt3 squared is how to do it

Answer 8

?

Answer 9

what do i subtract

Answer 10

You can find this symbol √ on a calculator. so first type 3 times 7 then hit this button √. After you did that you simplified the first one.

Answer 11

Then do the same for the second one

Answer 12

\[(a+b)^2=(a+b)(a+b)=a^2+b^2+2ab\]

Answer 13

i am stil lost hold on

Answer 14

Then you'll subtract both of them answers and square them.

Answer 15

hold on I am lost so srry. Let me catch up

Answer 16

so you take the (3sqrt7-3sqrt3)^2 converts to 3sqrt7 and 3sqrt3 then I have to subtract what then square what

Answer 17

@amistre64 can u help

Answer 18

@Night-Watcher

Answer 19

i did help .... use the formula.

Answer 20

ok I am trying. so you take the (3sqrt7-3sqrt3)^2 converts to 3sqrt7 and 3sqrt3 then I have to subtract what then square what is this part right
@amistre64

Answer 21

i would not do that ...

Answer 22

i would do:\[(a+b)=a^2+b^2+2ab\]

Answer 23

why?

Answer 24

sqrt7 and sqrt3 are irrational numbers that have no exact decimal forms to play with.

Answer 25

ok so that would be umm 3sqrt7+3sqrt3 is that part corrrect

Answer 26

sorry I am horrible at Algebra

Answer 27

I am trying hard but my math teacher explains it way to quick and complexx

Answer 28

\[(~\underbrace{3\sqrt7}_a~+~\underbrace{(-3\sqrt3)}_b~)^2\]

Answer 29

omg i have that part on paper but i thought it was wrong hold on

Answer 30

\[(a+b)=a^2+b^2+2ab\]
\[(3\sqrt7-3\sqrt3)=(3\sqrt7)^2+(-3\sqrt3)^2+2(3\sqrt7)(-3\sqrt3)\]

Answer 31

thanks so much i got it Thanks so very very much

Answer 32

good luck

Answer 33

thanks I fanned u and medaled u