Evaluate 3x^2+1 when x=-1

10

Step-by-step explanation:

3(-1)=-3

-3^2=9

9+1=10

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

just watch memes

step-by-step explanation:

it me < 3