Question

help!! State any restrictions on the variables.

Answer 1

simplify the top, you have 4x - 2x^2 same as -2x^2 + 4x
then you can take out -2x(........) what is inside ???

Answer 2

the only restriction you'd find on a simple fraction is that
the denominator CANNOT be 0, otherwise it becomes "undefined"
0/25 = 0
25/0 = undefined, 0 times anything will give 0, and the remainder will always be 25, bigger than 0 yet never divisible

Answer 3

so, what value for "x" would make the denominator there 0?