Sorry i need the answers for these.?

Question

im doing inline classes and i can never get ahold of my teacher to ask for help.

1.If x2 - 13x + 42 = (x + A)(x + B), then A + B =

2.When 3x2 - 8x + 5 is factored, one of the factors is:

3.When 16b2 + 10b - 21 is factored, one factor is

4.When factoring 2x2 + 4x + 6, the first step is

5.When a polynomial with a "-" (negative) sign on the last term is factored, what is always true about the signs of the factors?

6.List all the factors of x2 + 3x + 2

7.List all the factors of 6x2 + 14x - 12

Answer 1

1.If x² - 13x + 42 = (x + A)(x + B), then A + B = -13

2.  3x² - 8x + 5 = (x - 1)(3x - 5)

3. 16b² + 10b - 21 = (2x + 3)(8x - 7)

4.When factoring 2x² + 4x + 6, the first step is to factor out a 2.

5.When a polynomial with a "-" (negative) sign on the last term is factored, what is always true about the signs of the factors? One is positive and the other is negative.

6.List all the factors of x² + 3x + 2 = (x + 1)(x + 2)

7.List all the factors of 6x² + 14x - 12 = 2(x + 3)(3x - 2)

Hope this helps you!