color(blue)("Step 1")
Write as: y=5(x^2-2/5x)-6+k
where k is a correction for an error that will be introduced by the method.
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
color(blue)("Step 2")
color(brown)("Move the power to outside the brackets")
y=5(x-2/5x)^2-6+k
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
color(blue)("Step 3")
color(brown)("Halve the "2/5)
y=5(x-2/10x)^2-6+k
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
color(blue)("Step 4")
color(brown)("Remove the "x" from "-2/10x)
y=5(x-2/10)^2-6+k
color(green)("Now we need to determine the value of "k)
,~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
color(blue)("Step 5")
The squaring the -2/10" " ->+4/100
Now multiply it by the 5 ->5xx4/100 = 4/20-=1/5
So 1/5+k=0=> k=-1/5 giving
" "color(purple)(bar(ul(|color(white)((2/2)/2)y=5(x-1/5)^2-31/5color(white)(2/2)|)))
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
color(white)(.)
![Tony B]()
