Here are some ideas that should help:
^
" to represent superscripts, as in "x^2
"
for "x squared", and "x^(1/2)
" for "the square root of
x". Use parentheses to avoid confusion about what belongs in the
power. E.g., "x^(2x)+1
" rather than "x^2x +
1
(x^2)x + 1
x^(2x+1)
_
" to represent subscripts, as in "x_i
"
for "x sub i". Use parentheses as above to make more
complicated subscripts clear.
2x^2 + 3 = -1
2x^2+3=-1
"
/
", as in "(x+1)/(2x-3)
",
not "x+1/2x-3
" since this could be read as "x +
(1/2)x -
3
I can't figure out how to factor the equation x^3 - 2x^2 + 1 = 0 Can you give me any advice?
1 f(x) = ------------- 1 - 2x + x^2 1 = ------- (1-x)^2