32601883
Description
Quiz by Theresa C., updated more than 1 year ago
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Created by Theresa C.
about 3 years ago
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Question 1
Question
\[x^2-4x-4=0\]
Answer
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\[x=2, x=-12\]
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\[x=2\pm2\sqrt{2}\]
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\[x=2\pm\sqrt{3}\]
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\[x=-2\pm4\sqrt{2}\]
Question 2
Question
\[x^2-10x+16=0\]
Answer
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\[x=-5, x=-9\]
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\[x=8, x=2\]
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\[x=5 \pm\sqrt{41}\]
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\[x=\pm\sqrt{13}\]
Question 3
Question
\[x^2+10x-56=0\]
Answer
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\[x=4, x=-14\]
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\[x=3\pm\sqrt{29}\]
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\[x=5\]
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\[x=\pm\sqrt{5}\]
Question 4
Question
\[2x^2+4x+2=0\]
Answer
-
\[x=-1\]
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\[x=-3\pm3\sqrt{5}\]
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\[x=0, x=1\]
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\[x=\pm\sqrt{7}\]
Question 5
Question
\[2x^2-12x-10=0\]
Answer
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\[x=3\pm\sqrt{14}\]
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\[x=\pm11\]
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\[x=\pm\sqrt{19}\]
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\[x=4, x=-8\]
Question 6
Question
\[3x^2-48=0\]
Answer
-
\[x=\pm4\]
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\[x=-1, x=-8\]
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\[x=-5\pm4\sqrt{10}\]
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\[x=\pm\sqrt{2}\]
Question 7
Question
\[x^2+2x-14=0\]
Answer
-
\[x=-1\pm\sqrt{15}\]
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\[x=3\pm4\sqrt{3}\]
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\[x=-7, x=5\]
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\[x=\pm7\]
Question 8
Question
\[5x^2-65=0\]
Answer
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\[x=\pm\sqrt{13}\]
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\[x=\pm25\]
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\[x=-10, x=3\]
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\[x=-6\pm\sqrt{3}\]
Question 9
Question
\[4x^2-20x=0\]
Answer
-
\[x=0,x=5\]
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\[x=\pm2\]
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\[x=-8\pm2\sqrt{2}\]
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\[x=\pm6\sqrt{11}\]
Question 10
Question
\[x^2-12x-1=0\]
Answer
-
\[x=6\pm\sqrt{37}\]
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\[x=-12, x=9\]
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\[x=7\pm\sqrt{7}\]
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\[x=-6\]
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