Just 4 questions plz answer!!! will give 10 points!! thanx!! got lezz dan 30 min!!?

Question

Question 1 (Essay Worth 1.0 points)

Solve the following three quadratic equations. Remember there are two solutions to a quadratic equation.

Please use ^ for exponents, sqrt(x) for a radical, and x/y for fractions.

x^2=20

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Question 2 (Essay Worth 1.0 points)

If the answer is irrational, please give the answer as a simplified radical, not as a rounded decimal.

x^2+3x=12

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Question 3 (Essay Worth 1.0 points)

2x^2+4x-3=0

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Question 4 (Essay Worth 1.0 points)

The following equation is in Standard form.

Put the equation in General form by completing the square.

Tell the vertex of the parabola.

Please use ^ for exponents.

f(x)=x^2-4x+7

Answer 1

I don't know the answers to your math problems but may I suggest that you take an English class?  They teach you how to spell.  Also, if you didn't know already, Yahoo Answers now has a built-in spell checker.  You should consider using "dat".

Answer 2

Not going to do the work for you but go to this website and it will do it for you.

http://www.mathway.com/  

Answer 3

How will you learn if you don't do your own work?

Slacker

Answer 4

1.

x= sqrt(20) OR x = - sqrt(20)

2.

x = - sqrt(57)/2 - 3/2 OR x = sqrt(57)/2 - 3/2

3.

x = - sqrt(10)/2 - 1 OR x = sqrt(10)/2 - 1

4.

I learned my math in Ductch so i'm not sure what vertex means, but if that means the 'form', it'sa smiley face, not a sade face...

Download Derive 6, it's very handy for these kinds of relatively siple tasks and pretty easy to use.

Answer 5

Get some self respect and do your homework.

Answer 6

2 (Square root of) 5

that's all i got

=D

Answer 7

Do your own homework.

Answer 8

Looks like someone's having problems with homework.  

Answer 9

sorry..I'm trying to figure out the same problems.I'm in grade 10.