For what value of x is the rational expression below undefined? x-1/(x-3)(x+1)

3 and -1

Step-by-step explanation:

The denominator cannot be zero.

⇒ (x - 3)(x + 1) ≠ 0

⇒ x - 3 ≠ 0      and       x + 1 ≠ 0

⇒       x ≠ 3     and             x ≠ -1

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45