Question

help plzzz
solve. x^2-14x+58=0

A.{3+7i, 3-7i}
B.{2+19i, 2-19i}
C.{2+9i, 2-9i}
D.{7+3i, 7-3i}

Answer 1

thank you so much :D

Answer 2

\(\large\color{black}{ x^2-14x+58=0 }\)
\(\large\color{black}{ x^2-14x=-58}\)
\(\large\color{black}{ x^2-14x+49=-58+49}\)
\(\large\color{black}{ x^2-14x+49=-9}\)
\(\large\color{black}{ (x-7)^2=-9}\)
\(\large\color{black}{ x-7=-±3i}\)
\(\large\color{black}{ x=7-±3i}\)

Answer 3

the last thing should be,
\(\large\color{black}{ x=7±3i}\)