Solve. (2x^2) - 8x -14 = 0

1) x= 4± 3 √2
2) x= 2± 2 √7
3) x= 4± √3
4) x= 2 ± √11

Question

Solve.  (2x^2) - 8x -14 = 0

1) x= 4± 3 √2
2) x= 2± 2 √7
3) x= 4± √3
4) x= 2 ± √11

anonymous · Answer

judging by the answers I guess you could use the quadratic equation.

anonymous · Answer

wait.. ha ha.. divide the whole thing by 2

anonymous · Answer

and it'll be x^2 - 4x -7

anonymous · Answer

so could you tell me which is the best possible answer? i have no clue

anonymous · Answer

The one that is the correct answer.  :p

anonymous · Answer

you have to use the quadratic formula...  what you have is...

x^2 - 4x -7

and the quadratic formula is...

anonymous · Answer

attachment

anonymous · Answer

ax^2 + bx + c is the form we have...

(1)x^2 - 4x -7

where 

a =1
b = (-4)
c = (-7)

anonymous · Answer

plug a,b, and c into the quadratic equation to solve for the roots of x..  these are the points on the graph where this function crosses the x axis...

anonymous · Answer

im trying i suck at this

anonymous · Answer

You cant just help out a pal? one question ):

anonymous · Answer

i got 4±√44 / 2 so far