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Popular >

simplify sqrt(81x^2)

Solution

simplify

81 x^{2}

Solution

9 x

Solution steps

81 x^{2}

Apply radical rule:

ab = a b,

assuming

a \geq 0, b \geq 0

81 x^{2} = 81 x^{2}

= 81 x^{2}

81 = 9

= 9 x^{2}

Apply radical rule:

a^{2} = a,

assuming

a \geq 0

x^{2} = x

= 9 x

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Frequently Asked Questions (FAQ)

What is sqrt(81x^2) ?
The solution to sqrt(81x^2) is 9x