Question

qual o valor da expressão √250+√180-√80-√60

Answer 1

= √250 + √180 - √80 - √60

= √25.√10 + √36.√5 - √16.√5 - √4.√15

= 5√10 + 6√5 - 4√5 - 2√15

= 5√10 + 2√5 - 2√15

Resp.:  5√10 + 2√5 - 2√15

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250: 2
125: 5
25: 5
5: 5
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1 = √25.√10 = 5√10

180: 2
90: 2
45: 3
15: 3
5: 5
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1   =  √4.√9.√5 = 2.3√5 = 6√5

80: 2
40: 2
20: 2
10: 2
5: 5
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1  =  √16.√5 = 4√5

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60: 2
30: 2
15: 3
5: 5
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1   =   √4.√15 = 2√15