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April 18, 2015

April 18, 2015

Posted by **Ulyessus** on Tuesday, February 16, 2010 at 11:35pm.

If x-2(square root xy)=9-4(square root 2)

so since there are two square roots

-2(square root xy) equals -4(square root 2)

How is this possible, could the values be different and they are not equal.

- Year 11 maths -
**bobpursley**, Tuesday, February 16, 2010 at 11:48pmyour teacher is dead wrong.

example:

6-sqrt25=15-sqrt196

sqrt25 is not equal to sqrt196, ever.

Point this out to your teacher.

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