How do you simplify $\sqrt{90} \cdot \sqrt{40} - \sqrt{8} \cdot \sqrt{18}$ $sqrt90 sqrt 40 - sqrt 8 sqrt 18$ ?

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How do you simplify $\sqrt{90} \cdot \sqrt{40} - \sqrt{8} \cdot \sqrt{18}$ $sqrt90 sqrt 40 - sqrt 8 sqrt 18$ ?

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Answer 1 · 2017-03-30T20:43:13

$= 48$ $=48$

Explanation:

You can combine two roots into one if they are being multiplied or divided.

$\sqrt{90} \times \sqrt{40} - \sqrt{8} \times \sqrt{18}$ $color(red)(sqrt90 xxsqrt40)-color(blue)(sqrt8xxsqrt18)$

$\sqrt{3600} - \sqrt{144} \leftarrow$ $color(red)(sqrt3600)-color(blue)(sqrt144)" "larr$ now you can find the square roots.

$= 60 - 12$ $=60-12$

$= 48$ $=48$

Answer 2 · 2017-03-30T20:44:30

48

Explanation:

$\sqrt{90} \cdot \sqrt{40} - \sqrt{8} \cdot \sqrt{18} = \sqrt{90 \cdot 40} - \sqrt{8 \cdot 18}$ $sqrt(90) * sqrt(40) - sqrt(8) * sqrt(18) = sqrt(90 * 40) - sqrt(8 * 18)$
$\sqrt{3600} - \sqrt{9 \cdot 2 \cdot 2 \cdot 4} = 60 - 3 \cdot 2 \cdot 2$ $sqrt(3600) - sqrt(9*2*2*4) = 60 - 3 * 2 * 2$
$= 60 - 12 = 48$ $= 60 - 12 = 48$

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How do you simplify $\sqrt{90} \cdot \sqrt{40} - \sqrt{8} \cdot \sqrt{18}$ $sqrt90 sqrt 40 - sqrt 8 sqrt 18$ ?

2 Answers

Explanation:

Explanation:

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How do you simplify $\sqrt{90} \cdot \sqrt{40} - \sqrt{8} \cdot \sqrt{18}$ $sqrt90 sqrt 40 - sqrt 8 sqrt 18$ ?