SOLUTION: Could someone help me solve this problem using quadratic formula step by step. I am lost and do not understand. x^2+4x+3=0 Thank you

Question 387141: Could someone help me solve this problem using quadratic formula step by step. I am lost and do not understand.
x^2+4x+3=0
Thank you
Found 2 solutions by richard1234, jim_thompson5910:
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
The quadratic formula states that, for any second-degree polynomial , where a, b, and c are coefficients, then

In your provided quadratic, a = 1, b = 4, c = 3. Now we just plug in those numbers and simplify:

--> x = -3 or -1. You can check each solution and see that they satisfy the equation.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given equation.

Notice that the quadratic is in the form of where , , and

Let's use the quadratic formula to solve for "x":

Start with the quadratic formula

Plug in , , and

Square to get .

Multiply to get

Subtract from to get

Multiply and to get .

Take the square root of to get .

or Break up the expression.

or Combine like terms.

or Simplify.

So the solutions are or

If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim
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