Hi... I need help with some excersises:

1) Solve x2 – 3x = –8
Opt. A)
Opt. B)
Opt. C) Opt. D)

2) Solve –3x2 – 4x – 4 = 0

Opt. A)
Opt. B)
Opt. C) Opt. D)

3) Solve x2 + 4x + 8 = 0

A)
B)
C) D)

4) Solve 3x2 = –12x – 15

A) x = –4 ± 2
B) x = –4 ±
C) x = –2 ± 2 D) x = –2 ±

5) Solve –3x2 + 30x – 90 = 0
A)
B)
C) D)

2. ## Re: Help with some excersises... quadratics...!

2. What effort have you shown to work out these yourself?

3. It is against our policy to do work for a student that counts towards their final grade (as this clearly does).

Show some effort and where you are stuck and you might get some more help.

Man the problem is that i hate math.. I mean.. I love counting and business... but not this part of the math... this part I dont like it.... that is why I wanna pass it quickly, so I can get into the term I love the most.... please help... don't be that bad with me.. :$4. ## Re: Help with some excersises... quadratics...!$\displaystyle x^2 - 3x =-8\displaystyle x^2 - 3x + 8 = 0\$

Now you factorize here is link if you do not know how :

and this one uses the Quadratric formula:

Try IT

5. ## Re: Help with some excersises... quadratics...!

Wow thank you very muccch.... that helped a lot... THANNKSS... Now I understand how to do it..