Posted by john on .
i need help solving this one (x + 4)^2/3= 9 a) 13 b) 23;31 c) 5 d) 31;31
also sove check for extraneous solutions
(6x5)^1/2 = (7+ 4x)^1/2
a) 1/6 b) 9 c) 6 or d) 1/5

alg 
drwls,
(x+4)^1/3 = 3 or 3
(x+4) = 27 or 27
x = 23 or 31
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For your other one, square both sides:
6x 5 = 7 + 4x
2x = 12
x = 6