Evaluate
-14.2
Factor
-14.2
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4\times 0.7-\sqrt{8^{2}+15^{2}}
Calculate the square root of 0.49 and get 0.7.
2.8-\sqrt{8^{2}+15^{2}}
Multiply 4 and 0.7 to get 2.8.
2.8-\sqrt{64+15^{2}}
Calculate 8 to the power of 2 and get 64.
2.8-\sqrt{64+225}
Calculate 15 to the power of 2 and get 225.
2.8-\sqrt{289}
Add 64 and 225 to get 289.
2.8-17
Calculate the square root of 289 and get 17.
-14.2
Subtract 17 from 2.8 to get -14.2.
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