Help with irrational numbers, please?

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

Quote:

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Originally Posted by Laura901

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

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

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

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

$\displaystyle = 33 \sqrt{2}$

Quote:

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Originally Posted by janvdl

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

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Quote:

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Originally Posted by janvdl

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

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

$\displaystyle = 33 \sqrt{2}$

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Thank you!