x√x=729
x³=729²=531,441
x=(531441)^(1/3)=81
2006-06-18 20:17:18
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answer #1
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answered by Pascal 7
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X*x=243*3=729
sqrt=27
2006-06-18 20:20:09
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answer #2
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answered by Anonymous
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X=81
2006-06-18 20:30:54
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answer #3
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answered by Superstar 5
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I got same answer as above (i.e. x = 81).
My working:
Problem: (Square root x)/3 = 243/x
Square (^2) both sides to get rid of the square root:
x/9 = 243^2/x^2
x/9 = 59049/x^2
Multiply both sides by 9 to get rid of fraction on LHS:
x = 59049/x^2 * 9
x = 531441/x^2
Multiply both sides by x^2 (x squared) to get x's on same side noting that x^2's on RHS are cancelled out:
x^3 = 531441
Finally, take the cube root of both sides to get the value of x:
Hence, x = 81.
2006-06-18 20:25:29
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answer #4
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answered by rouge7487 1
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Is it [sq rt. (x)] / 3 Or sq. rt ( x / 3 ) ??
Taking it to be 1st,
x * sqrt. x = 243 * 3 = 81 * 9
Hence, x = 81 [ 9 is sq.rt of 81]
Taking it to be 2nd
x * sq.rt x = 243 * sqrt. 3
x^3 = 243 * 243 * 3 squaring
x = cube root (177147)
2006-06-18 20:45:31
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answer #5
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answered by nayanmange 4
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sqrt(x)/3 = 243/x
cross multiply
xsqrt(x) = 729
sqrt(x^2 * x) = 729
sqrt(x^3) = 729
square both sides
x^3 = 531441
cbrt both sides
x = 81
ANS : 81
2006-06-19 05:42:31
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answer #6
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answered by Sherman81 6
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81
2006-06-18 20:34:09
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answer #7
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answered by rajesh_583 1
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sq. root 8 + squareroot 18 = X^2 2(2)^a million/2 + 3(2)^a million/2 = X^2 5(2)^a million/2 = X^2 X = (50)^a million/4 = 2.659 yet i think of you have asked the question incorrect. it rather is probably, sq. root of 18 + sq. root of 8 = sq. root of X oppsed to sq. of X. wherein case the respond would be 50
2016-12-13 17:12:34
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answer #8
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answered by sory 3
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Squaring both side & then cross multiply.
U will get 27 answer
2006-06-19 00:15:44
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answer #9
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answered by Jatin 2
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x/3=3^5/x
x^2=3^5*
x^2=3^6
x^2=729
x=27
2006-06-19 00:49:08
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answer #10
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answered by Anonymous
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