Tuesday
July 22, 2014

Homework Help: maths - a few questions

Posted by em on Saturday, February 24, 2007 at 10:56am.

Simplify 3(x-2)^2/x-2

Is the answer 3x^2-10x+10?
If not then what is?



When p= sqrt2 and q= sqrt6 write pq in the form a(sqrt)b where a and b are integers and b is as small as possible.



Multiply out these brackets. Give your answer in the simplest form. (x+2y)(2x+y)

Is the answer 2x^2 + 2y^2 + 5xy?
If not then what is?


Also when there is an = sign but it is 3 lines instead of 2, what does this mean?

Thankyou xx

1) No as
3(x-2)^2/(x-2)=3(x-2)=3x-6

2) sqrt2 x sqrt 6 =sqrt(2x6)=sqrt12
=Sqrt(4x3) =sqrt4 x sqrt3 =2xsqrt3
therefore a is 2 and b is 3

3) yes you are correct

4) it means equivalent for all values of your variable ie no one unique answer it represents an identity

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - 1)Find the standard deviation of the data set to the nearest tenth. (21,...
Algebra - 1)A bookshelf holds 4 mysteries, 3 biograpghies, 1 book of poetry, and...
Algebra 2 - 1. Simplify: sqrt6(sqrt2/2+sqrt3)-sqrt8 2. Simplify: sqrt(72x^3)-5x ...
algebra - Can someone please check my work on this problem? For some reason, I ...
Algebra II - 1)Find the exact value of sin 165 degrees. Answer: (sqrt6 + sqrt2)/...
Algebra II - 1)Find the exact value of sin 165 degrees. Answer: (sqrt6 + sqrt2)/...
Math - Is this correct: sqrt2/sqrt10=sqrt2/5sqrt2 nope. it would be sqrt2/(sqrt5...
math - I have to find an exact solutions on the interval [0,pi) for both of ...
Algebra - (sqrt3+5 sqrt6)(sqrt3-5 sqrt6) DRWLS-Just take the difference of the ...
Math - Can someone please check my answers below for accurateness? The ...

Search
Members