Solve the quadratic equation: 3x2 − 2x − 8 = 0
A.4/3,2
B.-4/3,3
C. -2/3,4
D. -4/3,2

Question

Solve the quadratic equation:  3x2 − 2x − 8 = 0
A.4/3,2
 B.-4/3,3
  C. -2/3,4
    D. -4/3,2

e.cociuba · Answer

Do u mean: 
3x^2 − 2x − 8 = 0 ??

anonymous · Answer

ya

e.cociuba · Answer

(3x + 4) (x - 2) = 0   
x = -4/3 
x = 2 
So, your answers gunna be D

e.cociuba · Answer

Do u want me to explain?

anonymous · Answer

yes plz

e.cociuba · Answer

So basically u want to factor the problem out to get to this: (3x + 4) (x - 2) = 0   
Do u know how to factor?

anonymous · Answer

no i do not know how to factor thing really good

e.cociuba · Answer

In order to factor 3x^2 − 2x − 8 = 0, first multiply the leading coefficient 3 and the last term -8 to get -24.

e.cociuba · Answer

So here comes the factoring part: 
What two numbers multiply to -24 and add to -2?

e.cociuba · Answer

So the answers gunna be 4 and -6.

e.cociuba · Answer

Do u have any questions so far?

anonymous · Answer

no

e.cociuba · Answer

Ok so..the original quadratic 3x^2 − 2x − 8, breaks down to this (just replace -2x with the two numbers that multiply to -24 and add to -2, which are: 4 and -6): 
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