Question

@desmarie

Answer 1

this was our question
http://assets.openstudy.com/updates/attachments/5796631be4b049dfccf6d3f1-kingogcobraxx-1469474077907-capture.png

Answer 2

\[\large \bf 2y^2+6y-8=0 \]

Answer 3

ok

Answer 4

want to use it by general method or by formula ?

Answer 5

either

Answer 6

okay lets start by general method

Answer 7

you already said the answer was "a" to that one but have fun with that

Answer 8

divide the whole equation by 2

Answer 9

y^2 + 3y - 4

Answer 10

good

Answer 11

\[\large \bf ax^2+bx+c=0\]
the two roots will satisfy say `x` and `y`when
\[\large \bf xy=ab\]
and
\[\large \bf x+y=b\]

Answer 12

so \[\large \bf y^2+3y-4=0\]
\[\large \bf xy=-4~\And~x+y=3\]

Answer 13

can you find out the value of x and y ?

Answer 14

lol...prob not

Answer 15

figure all the factors of -4
\[\large \bf -4=1 \times -4=-2 \times 2 \]

Answer 16

-4=1*-4 = -2*2 = 2*-2 =-1*4

Answer 17

from these factors,tell me which staisfy x+y=3

Answer 18

*satisfy

Answer 19

you there ? @desmarie

Answer 20

lol....sorta

Answer 21

tell me