Which two values of x are roots of the polynomial below?
3x2-3x+1

The roots are

Step-by-step explanation:

we have

The formula to solve a quadratic equation of the form

is equal to

in this problem we have

so

substitute in the formula

Remember that

so

The roots are

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