Question

determine the natural of the root of quadratic equation m2+2m+9=0​

Answer 1

$\huge\underline\mathcal\red{♡ĂnSwer♡}$

As we know that ,

m= (-2+√2^2 - 4×1×9)/2

= (-2+√4-36)/2

= (-2+√-32)/2

=2(-1+2√-2)/2

= -1+2√2i