Question

Please find attached

Question 21 (ii)

Answer 1

It's upside down...

Answer 2

thanks

Answer 3

@Hollywood_chrissy Confirm that
\[(2x+1)^2+(2x^2+2x)^2=(2x^2+2x+1)^2\]
Is this your question?

Answer 4

@Hollywood_chrissy ???

Answer 5

yes

Answer 6

Take the right side
\[(2x^2+2x+1)^2\]
Let \[2x^2+2x=a\]
so we have
\[(2x^2+2x+1)^2=(a+1)^2=a^2+2a+1\]
now substitute back
\[a=2x^2+2x\]
So, we get
\[(2x^2+2x+1)^2=(2x^2+2x)^2+\underline{2(2x^2+2x)+1}\]
See the underlined terms
\[2(2x^2+2x)+1=4x^2+4x+1\]
The right hand side is
\[4x^2+4x+1=(2x)^2+2(2x)(1)+1=(2x+1)^2\]
so we get
\[(2x^2+2x+1)^2=(2x^2+2x)^2+(2x+1)^2\]
Hence Proved

Answer 7

@Hollywood_chrissy Do you understand this?

Answer 8

no

Answer 9

do you mind lengthy methods which give correct answer.

Answer 10

@Hollywood_chrissy What didn't you get?
Sorry I was not here

Answer 11

all of it.