Question

What are the solutions of this quadratic equation?

Answer 1

B.

Explanation:

`x^2-8x+97=0`

`x=(-(-8)\pm√((-8)^2-4*1*97))/(2*1)\left\{x=\left.\ (-b\pm√(b^2-4ac))/(2a)\right\}\right.`

`=(8\pm√(-324))/(2)`

`=(8\pm18i)/(2)\left\{i^2\right.=-1\Longrightarrow√(-1)=\left.\ i\right\}`

`\Rightarrow x_1=4-9i,x_2=4+9i`

`\therefore Choose\ B.`

I hope this helps you

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