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miss Akunina [59]
3 years ago
8

F(x)= 3x^2+5x-8. Solve the quadratic equation

Mathematics
1 answer:
7nadin3 [17]3 years ago
7 0

Answer:

             \bold{x_1=1\ ,\quad x_2=-\dfrac83}

Step-by-step explanation:

3x^2+5x-8=0\quad\implies\quad a=3\,,\ b=5\,,\ c=-8\\\\x=\dfrac{-5\pm\sqrt{5^2-4(3)(-8)}}{2\cdot3}=\dfrac{-5\pm\sqrt{25+96}}{6}=\dfrac{-5\pm\sqrt{121}}{6}\\\\ x_1=\dfrac{-5+11}{6}=1\ ,\qquad x_2=\dfrac{-5-11}{6}=\dfrac{-16}6=-\dfrac83

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
Can someone explain what to do like im a 5 year old please? (pre algebra)
QveST [7]

Answer:

angle 3 = 61

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Step-by-step explanation:

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also each line going across has to be 180° so if angel 1 was 175 then angle 2 has to be 5 so when you combine them it becomes 180

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3 0
2 years ago
A direct variation function contains the points ​
Rudiy27
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6 0
3 years ago
Predict the number of blue squares in a quilt with 11 green squares if there are 4 green squares in a quilt with blue squares.
attashe74 [19]

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3 years ago
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