3√[3] + 2√[27] –√[12]?

Question

How do you solve this?

Answer 1

3√[3] + 2√[27] –√[12]

=3√[3]+2.√(3.3^2)-√(2^2.3)

=3√[3]+6√3-2√3

=7√3

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Answer 2

3√[3] + 2√[27] –√[12]

= 3√[3] + 2√[9*3] –√[4*3]

= 3√[3] + 6√[3] –2√[3]

= (3 + 6 - 2)√[3]

= 7√[3]

12.124355652982141?

Answer 3

use the calculator .

step by step .

a scientific calculator , btw .

Answer 4

12.1 or 12

Answer 5

3 (1.72) + 2(5.2)- (3.4)

5.16 +10.4 -3.4 =12.16

no calculator approximated square root in head use calc to check actual square roots