Exam Revision

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[desert birch]

1xy. ew.

[desert birch]

what are you confused abouut?

the answer is wrong

[wet plinth]

nooo

how do i factorize

im meant to factorize it

did i do correctly?

[compact nacelle]

Ur right dude

[wet plinth]

mb * xy

[compact nacelle]

Just dont need the 1

[wet plinth]

oh hi tim

ok

[desert birch]

oh youre trying to factorize it

so i would just look at each type of number

so find the GCD of just the constants

then the xs

then the ys

[wet plinth]

can you tell me if im working this out right

so

we expand the brackets

so

5m - 25 = 3m - 7

now what

[compact nacelle]

Yeah

[desert birch]

move ms to one side

[compact nacelle]

Now you want all the same terms on the same side

[desert birch]

constants to the other

yes

[wet plinth]

5m-3m - 25-7?

[compact nacelle]

To get rid of the ms on the left youd take away 3m from both sides

Not quite

You get them on each side of the equal sign

So 5m-3m on one side

[wet plinth]

2m

[compact nacelle]

Yeah

Then

For the numbers

To get rid of -25 on one side

What would you do

[wet plinth]

uh

[compact nacelle]

So

[wet plinth]

25-7?

idk whats happening

[compact nacelle]

Yeah

So

[wet plinth]

oh

[compact nacelle]

2m=25-7

[wet plinth]

ohhhhhhh

i get it

[compact nacelle]

Nice

[wet plinth]

ok

now i do this some more times

m=9

[compact nacelle]

Yep

Good job

Good luck on ur test

[wet plinth]

wait

wait

awit

double check

did i do this one right

@compact nacelle

[compact nacelle]

Yeah

If u wanna check if youre right

Just substitute the n back in

So 3(4-3)

4-3 = 1

So the left handside is 3

Then right hand side, 4-1 is 3

And of course 3=3

So you are right

[wet plinth]

👍

so

how i do this

[compact nacelle]

Do you know what x multiplied by x is

[wet plinth]

2x?

x squared

AUGH

[compact nacelle]

Yes

X squared

And we write that as x^2

[wet plinth]

how do i write x squared

x^2

[compact nacelle]

$x^2$

[jolly mantle]

tim

[wet plinth]

wow

[compact nacelle]

Ok

So

Just

Expand like normal

And collect the like terms

So put together the x^2 terms

And put together the x terms

After expanding