Hai Wei -

Can we have the quadratic question in fraction form?
Font size is different
by using factorization - by factorisation

Repeated values - hai Wei thought it is a repeat question

AX2 still capitalised

https://www.dropbox.com/s/ra9264dqfordi00/Screenshot%202018-11-21%2021.45.59.png?dl=0

If blah can be written ax2+bx+c=0, find the values of a, b and c.

https://www.dropbox.com/s/aau0gyxx6q711qs/Screenshot%202018-11-21%2021.48.49.png?dl=0
Multiply out the terms
Put arrows

https://www.dropbox.com/s/2srtkxoy8kojaiv/Screenshot%202018-11-21%2021.54.26.png?dl=0
+- square root of 81

https://www.dropbox.com/s/cvnpttw5pkfqgln/Screenshot%202018-11-21%2021.56.26.png?dl=0
+- 0 seems to be too much
Just say 0 and then x = 10

https://www.dropbox.com/s/pw4fa4xdky1p9sd/Screenshot%202018-11-21%2021.59.00.png?dl=0
Phrasing should bel like a, b, c previously
Hint: Make sure that all the terms are on the left hand side before determining a, b and c
In solution, write a = this, b = this, c = this

https://www.dropbox.com/s/uhyg0yxstau2gug/Screenshot%202018-11-21%2022.11.38.png?dl=0
write down the quadratic equation in the form x^2 + bx + c = 0
Align right, space between left + and text box

(x - 10)(x - 6) = 0
Expand from here…
This is the E Math way, how we did it was a math

Hint:
II a and b are the solutions of a quadratic equation, then (x-a)(x-b)=0

Hai Wei trial with one user tomorrow

One missing question -
x^2 + xy + y^2 = 0
Find x in terms of y
Hard factorisation question

https://www.dropbox.com/s/3yv1e1nmpx2roo1/Screenshot%202018-11-21%2022.36.22.png?dl=0
Two choices - solve equation or factorise expression
This question should be easy
If this is a factorisation question, there should not be = 0
For factorisation, student should write the actual expression entirely

https://www.dropbox.com/s/qls2ltjqdnj0m44/Screenshot%202018-11-21%2022.50.44.png?dl=0
https://www.dropbox.com/s/zl30v3eojng2fnp/2018-11-21%2022.47.22.jpg?dl=0
This is the solution according to hai Wei

https://www.dropbox.com/s/mwyddstlv3k74q3/Screenshot%202018-11-21%2022.52.26.png?dl=0
Convert the equation into the form

https://www.dropbox.com/s/g6lk3ka6akp1kfg/Screenshot%202018-11-21%2022.57.23.png?dl=0
x, a and b should be small

https://www.dropbox.com/s/8517xzraee51rkx/Screenshot%202018-11-21%2022.58.11.png?dl=0
Move everything on the left hand side one

https://www.dropbox.com/s/zxf6sma8msi8ivv/Screenshot%202018-11-21%2022.59.30.png?dl=0
How is this medium difficulty?

https://www.dropbox.com/s/rryimebxmosnl2m/Screenshot%202018-11-21%2023.05.11.png?dl=0
This hint does not help
Remove the denominator by multiplying on both sides

https://www.dropbox.com/s/t7f218n56lop4q1/Screenshot%202018-11-21%2023.05.56.png?dl=0
Sigh…

https://www.dropbox.com/s/2113fr8nuvj52sh/Screenshot%202018-11-21%2023.06.36.png?dl=0
Can ask for a 3 sf answer
Shubham - why isn’t this represented as fraction?

https://www.dropbox.com/s/m2hqgplzp9nmvtg/Screenshot%202018-11-21%2023.07.32.png?dl=0https://www.dropbox.com/s/m2hqgplzp9nmvtg/Screenshot%202018-11-21%2023.07.32.png?dl=0
then x = …
Lower case please

https://www.dropbox.com/s/ew2ae1c4relnutz/2018-11-21%2023.09.14.jpg?dl=0.
Casco - https://www.dropbox.com/s/6kiszbn4lsycxjd/Screenshot%202018-11-21%2023.10.32.png?dl=0

Number of 	questions is not the number that is asked

https://www.dropbox.com/s/rq4wloj6wfqcnnm/Screenshot%202018-11-21%2023.13.35.png?dl=0
If x = a is a solution, then substitute x = a into the equation

https://www.dropbox.com/s/uuvl5wrm4x2n7pg/Screenshot%202018-11-21%2023.14.35.png?dl=0
Every line is r = …, r = …
It is an equation, Youu have to write las and rhs every line

https://www.dropbox.com/s/t7esza1b5z2g7wv/Screenshot%202018-11-21%2023.15.35.png?dl=0
Hint missing

https://www.dropbox.com/s/2egvjnqhj3mwzu1/Screenshot%202018-11-21%2023.16.21.png?dl=0
Equation in question is wrong
It is not latex, representation is messed up
Labelling equation, give it a bit of space and then write (1), eq is understood
6xp = 6p
Equations 1 and 2 should first have all constant terms moved to the rhs and simplified
No need to show 6 x 23, just write 138
https://www.dropbox.com/s/5qmbzehd1sv3t4h/2018-11-21%2023.22.13.jpg?dl=0 (first 4 lines of current solution are okay)

wacom tablet

https://www.dropbox.com/s/z0i5c7mbur0c6zl/Screenshot%202018-11-21%2023.23.57.png?dl=0
Can be a hard question

https://www.dropbox.com/s/aq8yfzik83xpuug/Screenshot%202018-11-21%2023.25.40.png?dl=0
Not the solution

https://www.dropbox.com/s/pew7mewfxcbxa3n/Screenshot%202018-11-21%2023.26.36.png?dl=0
In elementary maths, we do not talk about discriminant.
Hint should be: If both solutions of a quadratic equation ax^2 + bx + c should be a perfect square

Need to tally with cask

https://www.dropbox.com/s/fjlavslpypgxhdo/Screenshot%202018-11-21%2023.28.18.png?dl=0
Change triangle to delta

https://www.dropbox.com/s/khtmqi105w6bs5d/Screenshot%202018-11-21%2023.29.30.png?dl=0
Use first line
Express the area of each triangle in terms of x.
Substitute the areas into
	Area ratio = Area of delta ABC / Area of delta PQR

https://www.dropbox.com/s/pn6mgxf0jaovhkr/Screenshot%202018-11-21%2023.32.55.png?dl=0
Medium

Put Hai Wei terms on paper

https://www.dropbox.com/s/5qmbzehd1sv3t4h/2018-11-21%2023.22.13.jpg?dl=0