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21 votes
Mation. (See Example 5.)
30. ax² + 6x + c = 0; two real solutions

User The Lemon
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1 Answer

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10 votes

Answer:

Explanation:

ax²+6x+c=0

disc=6²-4×a×c=36-4ac≥0,(∵ it has two real solutions.)

36-4ac≥0

36≥4ac

4ac≤36

ac≤9

User Karmastan
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