1x^2+2x+1=0
so far.. im at this: -2+- square root 2^2-4(1)(1) Over 2.
I am stuck! D':
SOMETIMES when the quadratic equation is 'easy' like this one , you can just factor it like the guest 1 did......(unless you are specificallly ASKED to use the quadratic formula)...other times it may not be so easy to factor them out and you will HAVE to use the quadratic formula to get the answer(s) like x^2 +53x - 20 = 0 (I do not know the answers to this...I just made it up as an example of when you would have to use the quad formula)
Solve for x:
x^2+2 x+1 = 0
Write the left hand side as a square:
(x+1)^2 = 0
Take the square root of both sides:
x+1 = 0
Subtract 1 from both sides:
Answer: |
| x = -1
If you have to solve it using the quad formula
you are doing it correctly
-2 +- sqrt(4-4) divided by 2 equals ( -2 +- 0) / 2 right?
equals -2/2 = -1 right??? you are working it correctly..... Hayley?
SOMETIMES when the quadratic equation is 'easy' like this one , you can just factor it like the guest 1 did......(unless you are specificallly ASKED to use the quadratic formula)...other times it may not be so easy to factor them out and you will HAVE to use the quadratic formula to get the answer(s) like x^2 +53x - 20 = 0 (I do not know the answers to this...I just made it up as an example of when you would have to use the quad formula)
