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queenpaige2015
24.06.2021 •
Mathematics
WILL GIVE BRAINLIEST
Hannah and Han are each trying to solve the equation x² – 8x + 26 = 0. They know that
x = -1 are i& - i, but they are not sure how to use this information to solve for x in their
equation.
Part 1- Here is Hannah's work:
x? - 8x + 26 = 0
X? – 8x = -26
Show Hannah how
to finish her work using completing the square and complex numbers.
Part 2- Han decides to solve the equation using the quadratic
formula. Here is the beginning of his
work
-b+V62-4ac
-(-8)+7-8)2–401|(26)
Finish using the quadratic formula. Simplify the final answer as much as possible.
Solved
Show answers
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Ответ:
Part one:
Rewrite in the form![(x+a)^{2} =b](/tpl/images/1382/9923/7a448.png)
Solve![x-4=\sqrt{-10} : x=\sqrt{10} i+4](/tpl/images/1382/9923/bad63.png)
Solve![x-4=\sqrt{-10} : x=-\sqrt{10} i+4](/tpl/images/1382/9923/f70dd.png)
Part two:
Simplify![\sqrt{\left(-8\right)^2-4\cdot \:1\cdot \:26}}: 2\sqrt{10} i](/tpl/images/1382/9923/48570.png)
Separate solutions
Ответ:
1. None Of These
2. Skew
3. Perpendicular