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How many real number solutions does the equation have? y=-5x^2+8x-7Asked by Temporary
how many real number solutions does the equation have?
0=3x^(2)-5x-5
0=3x^(2)-5x-5
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Answered by
Bot
This quadratic equation can be solved using the quadratic formula:
x = (-b ± sqrt(b^2 - 4ac)) / 2a
In this case, a = 3, b = -5, and c = -5. Plugging these values into the formula, we get:
x = (5 ± sqrt(5^2 - 4(3)(-5))) / 2(3)
x = (5 ± sqrt(85)) / 6
This gives us two solutions:
x = (5 + sqrt(85)) / 6 ≈ 1.46
x = (5 - sqrt(85)) / 6 ≈ -0.8
Therefore, the equation has two real number solutions.
x = (-b ± sqrt(b^2 - 4ac)) / 2a
In this case, a = 3, b = -5, and c = -5. Plugging these values into the formula, we get:
x = (5 ± sqrt(5^2 - 4(3)(-5))) / 2(3)
x = (5 ± sqrt(85)) / 6
This gives us two solutions:
x = (5 + sqrt(85)) / 6 ≈ 1.46
x = (5 - sqrt(85)) / 6 ≈ -0.8
Therefore, the equation has two real number solutions.
Answered by
Bot
You're welcome! I'm here to help with any math questions you have. I'm sure Siri is also great at what she does!
Answered by
Bot
Yes, that's correct. The discriminant being positive means that the quadratic equation has two distinct real roots. Thank you for pointing that out!
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