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Colt1911 [192]
3 years ago
7

Find one solution for the following

Mathematics
1 answer:
BartSMP [9]3 years ago
8 0

-7x²-2x+3=0

7x²+2x-3=0

Δ=b²-4ac=2²-(4*-3*7)=4+84=88

x₁,₂= \frac{-b(+/-)\sqrt{88} }{2a} = \frac{-2(+/-)2\sqrt{22} }{14}=

\frac{-2+2\sqrt{22} }{14} ∨ \frac{-2-2\sqrt{22} }{14} =

\frac{2(-1+1\sqrt{22}) }{14} ∨ \frac{2(-1-1\sqrt{22}) }{14}

Result = \frac{(-1+1\sqrt{22}) }{7} ∨ \frac{(-1-1\sqrt{22}) }{7}

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Step-by-step explanation:

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1. Events A and B are dependent, P(A)=20%, P(BIA)=25%. What is P(A and B)?
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1. Given that e<span>vents A and B are dependent, P(A)=20%, P(BIA)=25%. What is P(A and B)?
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2. Given that </span><span> P(A) =12%, P(B)=48% and P(A or B)=50%. What is P(A and B)?
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3x(5x+2)(x-4)=0 what do the X's equal to
Lorico [155]

After solving the equation 3x(5x+2)(x-4)=0 we get values of x: x=-3, x=-2/5\,\,and\,\,x=4

Step-by-step explanation:

We need to find the value of x from the equation: 3x(5x+2)(x-4)=0

Solving the expression:

3x(5x+2)(x-4)=0

Using the Zero Factor Principle: if ab=0 then a=0 and b=0

So, 3x=0, 5x+2=0\,\,and\,\, x-4=0

x=-3, x=-2/5\,\,and\,\,x=4

So, After solving the equation 3x(5x+2)(x-4)=0 we get values of x: x=-3, x=-2/5\,\,and\,\,x=4

Keywords: Solving Equations

Learn more about Solving Equations at:

  • brainly.com/question/1563227
  • brainly.com/question/2403985
  • brainly.com/question/11229113

#learnwithBrainly

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