Question

help????Medal....fan

Answer 1

i chose D

Answer 2

@campbell_st

Answer 3

@Nnesha

Answer 4

its not D

you need the discriminant\[\Delta = b^2 - 4ac\]

in the quadratic a = 6, b = -7 and c = -4

substitute them and calculate the value of the discriminant

the conditions are

\[\Delta = 0, ~ two~ real~ solutions, \]

\[\Delta = 0, ~ one ~repeated ~real ~solution\]

\[\Delta < 0,~ 2 ~imaginary~solutions\]

so calculate and check...

hope it helps

Answer 5

B @campbell_st

Answer 6

I don't think its B

\[\Delta = (-7)^2 - 4 \times 6 \times (-4)\]

Answer 7

my answer was x=47 @campbell_st

Answer 8

well I think you need to check your calculation... do it the way I've written it...

but if you got 47... is that > 0? or < 0? or = 0?

Answer 9

@rational @xo_kansasprincess_xo

Answer 10

@rational i pick B

Answer 11

@dan815 @nightowl38 @Ashleyisakitty

Answer 12

@wio @Kainui

Answer 13

compare ur eqn with general form i.e. \[ax^2+bx+c=0\]. now find discriminat i.e. \[b^2-4ac\].

if D>0, sol. are real and distinct
if D=0, two equal real roots.
if D<0, two imaginry root.

Answer 14

here
a=6, b=-7, c= -4. find D