Simplify√72-√800-√18

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Solution

√72 - √800 - √18
= √36×2 - √400×2 - √9×2
= 6√2 - 20√2 - 3√2
= (6 - 20 - 3)√2
= (-14 - 3)√2
= -17√2

The answer is -17√2

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S i m p l i f y : \sqrt{72} + \sqrt{800} - \sqrt{18}

Q. The simplified value of

\sqrt{72} + \sqrt{800} - \sqrt{18}

Simplify

(i) $3 \sqrt{45} - \sqrt{125} + \sqrt{200} - \sqrt{50}$
(ii) $2 \frac{\sqrt{30}}{\sqrt{6}} - 3 \frac{\sqrt{140}}{\sqrt{28}} + \frac{\sqrt{55}}{\sqrt{99}}$
(iii) $\sqrt{72} + \sqrt{800} - \sqrt{18}$

Simplify:

3√45 - √125 + √200 - √50

2√30/√6 - 3√140/√28 + √55/√99

√72 + √800 - √18

Root (72) + root (800) - root (18)

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Simplify√72-√800-√18

√72 - √800 - √18 = √36×2 - √400×2 - √9×2 = 6√2 - 20√2 - 3√2 = (6 - 20 - 3)√2 = (-14 - 3)√2 = -17√2 The answer is -17√2

√72 - √800 - √18
= √36×2 - √400×2 - √9×2
= 6√2 - 20√2 - 3√2
= (6 - 20 - 3)√2
= (-14 - 3)√2
= -17√2

The answer is -17√2