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Popular >

simplify sqrt(15^2-9^2)

Solution

simplify

1 5^{2} - 9^{2}

Solution

12

Solution steps

1 5^{2} - 9^{2}

1 5^{2} - 9^{2} = 144

= 144

Factor the number:

144 = 1 2^{2}

= 1 2^{2}

Apply radical rule:

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

1 2^{2} = 12

= 12

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Frequently Asked Questions (FAQ)

What is sqrt(15^2-9^2) ?
The solution to sqrt(15^2-9^2) is 12