Answer:

Step-by-step explanation:
They are two way to solution.
<h2>
METHOD 1:</h2>
Factor the polynomial on the left side of the equation:

Therefore:

<h2>
METHOD 2:</h2>
Multiply everything on the right side of the equation using the distributive property and FOIL:

Compare polynomials:

From here we have two equations:

<em>add 8 to both sides</em>
<em>divide both sides by 2</em>

<em>divide both sides by (-8)</em>

The results are the same. Therefore B = 6.