x = \sqrt { 21 ^ { 2 } - 10,5 ^ { 2 } }
Solve for x
x=\sqrt{191}\approx 13.820274961
Assign x
x≔\sqrt{191}
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x=\sqrt{441-10\times 5^{2}}
Calculate 21 to the power of 2 and get 441.
x=\sqrt{441-10\times 25}
Calculate 5 to the power of 2 and get 25.
x=\sqrt{441-250}
Multiply 10 and 25 to get 250.
x=\sqrt{191}
Subtract 250 from 441 to get 191.
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