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

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