SOLUTION: (2x+1)(x+5)=-3
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Question 687953: (2x+1)(x+5)=-3
Answer by josh_jordan(263) (Show Source): You can put this solution on YOUR website!
The first step in solving for x in this equation, is to expand the factoring on the left side of the equation:
(2x + 1)(x + 5) =
=
=
Next we want to set this equation equal to 0. To do this, add 3 to both sides, giving us
Now, we have a quadratic equation. Because this equation cannot be factored, we will use the quadratic formula to solve for x.
The quadratic formula:
In our equation, a = 2, b = 11, and c = 8. We will plug these numbers into the quadratic formula:
=
=
Final Answer:
x = ,
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