SOLUTION: 12 = 1/32 * x ^ (3/2) - 4

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Question 1204178: 12 = 1/32 * x ^ (3/2) - 4
Found 4 solutions by Theo, mananth, MathTherapy, greenestamps:
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
equation is:

1/32 * x ^ (3/2) - 4 = 12
add 4 to both sides to get:
1/32 * x ^ (3/2) = 16
multiply both sides by 32 to get:
x ^ (3/2) = 16 * 32 = 512
raise both sides by the power of (2/3) to get:
(x ^ (3/2)) ^ (2/3) = 512 ^ (2/3)
simplify to get:
x ^ ((3/2) * (2/3)) = 512 ^ (2/3)
simplify further to get:
x = 512 ^ (2/3)
solve for x to get:
x = 64

confirm by replacing x with 64 n the original equation to get:
1/32 * 64 ^ (3/2) - 4 = 12 becomes 12 = 12, confirming the value of x is good.

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
12+=+%281%2F32%29+%2A+x+%5E+%283%2F2%29+-+4

multiply by 32


12%2A32=+x%5E%283%2F2%29-128


384%2B128=+x%5E%283%2F2%29


512=+x%5E%283%2F2%29%7D%7D%0D%0A%0D%0A%7B%7B%7B512%5E2=+x%5E3
8^6 =x^3
Take cube root
x=64
CHECK
+%281%2F32%29+%2A+x+%5E+%283%2F2%29+-+4



+%281%2F32%29+%2A+64%5E+%283%2F2%29+-+4= 12



Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
12 = 1/32 * x ^ (3/2) - 4

I'd presume you're seeking the value of x. Is it that difficult to say so?

          
           ------ Cross-multiplying
           
    ------ Multiplying exponents by 2%2F3
 
             x = 26 = 64

Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


12=%281%2F32%29x%5E%283%2F2%29-4

Add 4 to both sides

16=%281%2F32%29x%5E%283%2F2%29

Multiply by 32

16%2A32=x%5E%283%2F2%29
%282%5E4%29%282%5E5%29=x%5E%283%2F2%29
2%5E9=x%5E%283%2F2%29

Raise each expression to the (2/3) power

x=2%5E6=64

ANSWER: 64