math assignment urgent
1. Provide a counter example that shows the statement is false. Explain why the counter example makes the statement false.
If two fractions have unlike denominators, then the LCD is the product of their denominators.
Answer:
1. Justify each step of the proof.
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Conjecture: If 2(x2 + 5) = 60, then x is 5 or –5. |
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1. 2(x2 + 5) = 60 |
1. |
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2. 2x2 + 10 = 60 |
2. |
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3. 2x2 = 50 |
3. |
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4. x2 = 25 |
4. |
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5. x = ±5 |
5. |
