Question

Efetue as somas algebricas
7v10-v90 3v40=

Answer 1

Ola Larissa

7√10 - √90 + 3√40 = 

7√10 - 3√10 + 6√10 = 10√10

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Answer 2

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$7 \sqrt{10} - \sqrt{90} +3 \sqrt{40} = \\ \\ 7 \sqrt{10} - \sqrt{2.3^2.5} +3 \sqrt{2^2.2.5} \\ \\ 7 \sqrt{10} -3 \sqrt{10} +3.2 \sqrt{10} = \\ \\ 7 \sqrt{10} -3 \sqrt{10} +6 \sqrt{10} = \\ \\ 13 \sqrt{10} -3 \sqrt{10} = \\ \\ 10 \sqrt{10}$