Simplify.
y = (x + 1)2 -

Step-by-step explanation:

Assuming it is supposed to be y = 2- (x+1)

y= x-1

or if it is supposed to be y = -2(x+1)

y= -2x-2

x=9

step-by-step explanation:

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5