How do you do these problems?

Question

1. Factor:

4x^2-35x-9

2.Solve the inequality: 7 is less than or equal to 2x+1<9

3. Solve the equation:

the absolute value of x+3=5

Answer 1

1. (4x + 1)(x - 9)

2. 7&lt;=2x+1&lt;9

7&lt;=2x+1 and 2x+1&lt;9

6&lt;=2x and 2x&lt;8

3&lt;=x and x&lt;4

3 &lt;= x &lt; 4

3. | x + 3 | = 5

x + 3 = 5 or x + 3 = -5

x = 2 or x = -8

Hope that helps!