which is equal to 2 square root of 54 -5 square root of 24?

Question

a -4 SR6

b 4 SR 6
c -8 SQ3

d SR3

Sr=Square root

Anonymous · Answer

2√54 - 5√24
= 2√[9*6] - 5√[4*6]
= 2√[9]√[6] - 5√[4]√[6]
= 2(3)√[6] - 5(2)√[6]
= 6√6 - 10√6
= -4√6

Anonymous · Answer

ITS 21

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