Question

x^2 +2√5 x+5 =0 solve using formula​

Answer 1

Answer:

The answer is −1±i√192.

Step-by-step explanation:

The quadratic formula is x=−b±√b2−4ac2a for the equation ax2+bx+c.

In this case, a=1, b=1, and c=5.

You can therefore substitute in those values to get:

−1±√12−4(1)(5)2(1).

Simplify to get −1±√−192.

Because √−19 is not a real number, we have to stick to imaginary solutions. (If this problem asks for real number solutions, there are none.)

The imaginary number i equals √−1, therefore we can substitute it in:

−1±√−1⋅192→−1±√−1⋅√192→−

Answer 2

Answer:

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