Yes
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It can be solved by using the quadratic equation formula.
A quadratic equation normally has 2 solutions and can be solved by using the quadratic equation formula.
x = - 4 - or + the square root of 3 Solved by using the quadratic equation formula.
Yes, however not all quadratic equations can easily be solved by factoring, sometimes you can factor and sometimes it is easier to use the quadratic formula. Example: x2 + 4x + 4 This can be easily factored to (x + 2)(x +2) Therefore the answer is -2 by setting x +2 = 0 and solving for x This can be done using the quadratic equation and you would get the same results, however, it was much faster to factor instead.
If: x2+x = 12 Then: x2+x-12 = 0 And using the quadratic formula: x = -4 or x = 3