X^2+3x-4 what would the x be if y=2.75

X^2+3x-4 what would the x be if y=2.75

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Sorry I am waaayy to stupid to answer that.

x = -4.5, x = 1.5

Your term is neither an equation, nor does it contain a y. Also this isn't WolframAlpha.

Wouldn't you know this if you are above the age of 17? How can you not know this?
2.75 = x^2 + 3x - 4
x^2 + 3x - 6.75 = 0
(x+1.5)^2 - 6.75 -2.25 = 0
(x+1.5)^2 = 9
(x+1.5) = +-3
x = -1.5 +- 3

Rearrange
x^2 +3x -4 = 2.75
x^2 +3x - 6.75 = 0

If you have to show working to solve for x
( -b (+-) sqrt(b^2 - 4ac)) / 2a
a = 1, b = 3, c = -6.75

x = (-3 (+-) sqrt(3^2 - 4 * 1 * -6.75)) / 2 * 1
x = (-3 (+-) sqrt (36)) / 2
x = (-3 (+-) 6) / 2
x = 1.5 or -4.5

Its obviously 721769634
You stupido op

aaaaaaa smart people fuck you.
do you know anything about economics and shit? NUH-UH. FUCKKKK YOUUUUUU

REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

still me
can you please recommend which one should i get please?

motherfucker if you need to solve this. you're just an underage b8

or a person who hasnt studied math in the last 4 years and never will. not even in college. God bless my country's educational system.

what do you mean, user? math is life, meth is love.

if you hate school math, do self study, it's so much more interesting

>Anonymous 02/08/17(Wed)20:19:20 No.7217
join our degenerate gay club discord.gg/Sae7aJr

no, you didnt understand. I literally didnt do math in highschool and now on my first year of college i did math and hardly survived. Im on an Economics and Business Administration faculty. The highschool's specialization i had, didnt include math. I feel like a potato because of this. Math wasnt that bad....and self-studying... yah... thats hard and that would imply not having time for myself...judge me.

What topic is this?
Quadratic formula?

Wtf is that futuristic calc called

TI inspire you retard

this, op learn to complete the square

Dude, I felt like a potato when I started Chemical Engineering. And I was decent at math in school. Third semester's Business course come around and its like sums only and the offhand fraction.

Do I spot.. Comic Sans?

x = x if y = 2.75.
There is no connection between x and y and if y = X^2+3x-4 X is still an unknown variable.

I'm scared as fuck.
I want to do compsci in uni, but i'm a brainlet at maths.

It's like, I can't think logically... For example, in lessons for maths, people are miles ahead of me, and it takes me on average 40% longer to understand a certain thing.

Should I just do software engineering instead? I hate being a fucking brainlet.

>inb4 selfstuddyy hurrrdururrr

Also, i'm pretty good at programming, i've been using Unity3d for about 4 years, and understand c# and python hardcore. But then there's the theory fucking math work, and I won't be able to pull it off.