Question

I need to find an equation that gives me a discriminant of 0 anybody have one?

Answer 1

Welcome to openstudy.

Answer 2

Do you know what a discriminant is?

Answer 3

yes

Answer 4

Ok so what does 4^2 - 4(2)(2)

Answer 5

oh we turn stuff like \[3x ^{2}-8x+12=0 \] into discriminant s using the quadratic equation

Answer 6

HINT: It equals 0

Answer 7

Yuh bruh

Answer 8

so how would you write that equation

Answer 9

4^2-4(2)(2) where b^2-4ac in ax^2+bx+c

Answer 10

You have the formula to find discriminant, it is \(b^2-4ac\) and you need it =0, so just let it =0, you get \(b^2-4ac=0 \) then \(b^2=4ac\), pick whatever you like to make them equal.

Answer 11

so \[2x^{2}+4x+2\]?

Answer 12

you mean a quadratic equation?
any perfect square set equal to zero will
for example \(z^2=0\) or \((x+3)^2=0\) or \((2x-1)^2=0\)

Answer 13

i need it in \[ax ^{2}+bx+c\]

Answer 14

ok then for example
\[(x+3)^2=0\\
x^2+6x+9=0\]

Answer 15

Thank you :)

Answer 16

in other words, don't think so hard about how to make
\[b^2-4ac=0\] just square something

Answer 17

im doing a semester exam review

Answer 18

lol

Answer 19

oh little joy!

Answer 20

Yeah... and i have to make the review myself so.... even better right?

Answer 21

i think the final episode of gracepoint is on tonight, sound more interesting

Answer 22

lol :D

Answer 23

good luck with your exam
why do you have to make your own review?

Answer 24

IDK..... I guess so we can study the material while we make the review

Answer 25

sounds like when you have to make your own switch to get beaten with

Answer 26

I initially read it as Queenofwelfare, but had to do a double take

Answer 27

YEP! lol because if you dont know HOW to make a review your screwed

Answer 28

HAHA! @wio

Answer 29

I also thought this was going to be about matrices as well, somehow

Answer 30

4 more problems to go guys! @satellite73