Help with irrational numbers, please?

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July 14th 2008, 06:44 AM
Laura901

Help with irrational numbers, please?

3 square root of 50 plus 6 square root of 18?
July 14th 2008, 06:47 AM
janvdl

Quote:

Originally Posted by Laura901

3 square root of 50 plus 6 square root of 18?

$3 \sqrt{50} + 6 \sqrt{18}$

$= (3 \times 5) \sqrt{2} + (6 \times 3) \sqrt{2}$

$= 15 \sqrt{2} + 18 \sqrt{2}$

$= 33 \sqrt{2}$
July 14th 2008, 07:00 AM
Laura901

Quote:

Originally Posted by janvdl

$3 \sqrt{50} + 6 \sqrt{18}$

Quote:

Originally Posted by janvdl

$= (3 \times 5) \sqrt{2} + (6 \times 3) \sqrt{2}$

$= 15 \sqrt{2} + 18 \sqrt{2}$

$= 33 \sqrt{2}$

Thank you!

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