Solving Quadratic Equations with Complex Solutions
Algebra 1 · Flashcards
ALGEBRA 1 · FLASHCARDS
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QUESTION
Which condition on
Δ
\Delta
Δ
guarantees two nonreal complex solutions?
QUESTION
Simplify
−
12
\sqrt{-12}
−
12
in simplest form.
QUESTION
Simplify
−
75
\sqrt{-75}
−
75
in simplest form.
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ANSWER
5
3
i
5\sqrt{3}i
5
3
i
.
−
75
=
25
⋅
3
⋅
i
=
5
3
i
\sqrt{-75} = \sqrt{25 \cdot 3} \cdot i = 5\sqrt{3}i
−
75
=
25
⋅
3
⋅
i
=
5
3
i
.
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