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Popular >

simplify sqrt(85^2-84^2)

Solution

simplify

8 5^{2} - 8 4^{2}

Solution

13

Solution steps

8 5^{2} - 8 4^{2}

8 5^{2} - 8 4^{2} = 169

= 169

Factor the number:

169 = 1 3^{2}

= 1 3^{2}

Apply radical rule:

a^{2} = a, a \geq 0

1 3^{2} = 13

= 13

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Frequently Asked Questions (FAQ)

What is sqrt(85^2-84^2) ?
The solution to sqrt(85^2-84^2) is 13