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Is the solution shown below correct? Explain.
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4 votes
Is the solution shown below correct? Explain.

Is the solution shown below correct? Explain.-example-1
User Nathan Bubna
by
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2 Answers

7 votes

Answer:

No. The correct values of a, b, and c were substituted in, but the formula was simplified wrong. The 64 should be added so the radicand is 73. There should be 2 real roots.

User Abaghel
by
6.7k points
4 votes
no, when it says "9-(64)", it should be "9+(64)".
User Cranjis
by
7.7k points
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