Question 175829
(C/D)+2 = ??? 
Answers are C+2D over D or C+2D 
least common denominator is "D":
= (C/D) + (2D/D)

= (c+2D)/D
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Also what are the possible values of x such that 3(x^2) - 2x =0
Factor to get:
x(3x-2) = 0
Since the product is zero, one of the factors must be zero:
x = 0 or 3x-2 = 0
x = 0 or x = 2/3
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finally, 
sqrt 3 + sqrt 27 = ????? 
= sqrt(3) + sqrt(9*3) 
= sqrt(3) + sqrt(9)*sqrt(3)
= sqrt(3) + 3*sqrt(3)
= 4sqrt(3)
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Cheers,
Stan H.