sketch y=(x-1)^3-4(x-1)
?? so confused about this question and its only 3 marks
need guidance plz
sketch y=(x-1)^3-4(x-1)
need guidance plz
sketch y=(x-1)^3-4(x-1)
Original post by SuperHuman98
?? so confused about this question and its only 3 marks
need guidance plz
sketch y=(x-1)^3-4(x-1)
need guidance plz
sketch y=(x-1)^3-4(x-1)
First, factorise.
Original post by BuryMathsTutor
First, factorise.
it is already factorised
Original post by SuperHuman98
it is already factorised
then factorise a little more.
Original post by SuperHuman98
?? so confused about this question and its only 3 marks
need guidance plz
sketch y=(x-1)^3-4(x-1)
need guidance plz
sketch y=(x-1)^3-4(x-1)
Factorise.
Where does this graph cross the axes?
You know the shape of a positive cubic. There you go.
If you really want to, you can differentiate and find the max and the min too.
Original post by BuryMathsTutor
.
then factorise a little more.
then factorise a little more.
Original post by Mr M
Factorise.
Where does this graph cross the axes?
You know the shape of a positive cubic. There you go.
If you really want to, you can differentiate and find the max and the min too.
Where does this graph cross the axes?
You know the shape of a positive cubic. There you go.
If you really want to, you can differentiate and find the max and the min too.
I cant figure out how to factrorise this, do I need to expand everything first?
Original post by SuperHuman98
I cant figure out how to factrorise this, do I need to expand everything first?
Take out the common factor of (x-1).
Original post by Zacken
By the way where the ... inside will be a difference of two squares and easy to factorise.
Original post by Mr M
Take out the common factor of (x-1).
I have got x(x-1)(x+1)-4(x-1)=o
Original post by SuperHuman98
I have got x(x-1)(x+1)-4(x-1)=o
You need to revise factorising.
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