Unknown number 7

Calculate unknown number whose 12th power when divided by the 9th power get a number 27 times greater than the unknown number. Determine the unknown number.

Correct answer:

x1 =  5.1962
x2 =  -5.1962

Step-by-step explanation:

x12/x9=27x x3=27x x2=27 x1=27=3 3=5.1962
x2=27=3 3=5.1962

Our quadratic equation calculator calculates it.

We will be pleased if You send us any improvements to this math problem. Thank you!


Tips to related online calculators
Looking for help with calculating roots of a quadratic equation?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

Related math problems and questions:

  • Unknown number 4
    ninth I think number. When I divided its square root by its 1/9, I get a number 1. What number am I thinking?
  • Unknown number
    mocninova_fx I think number. If subtract from the twelfth square the ninth square I get a number 27 times greater than the intended number. What is this unknown number?
  • Unknown number
    5nums Determine the unknown number, which double of its fourth square is equal the fifth its square.
  • Square
    percent Suppose the square's sides' length decreases by a 25% decrease in the content area of 28 cm2. Determine the side length of the original square.
  • Exponential equation
    exp Find x, if 625 ^ x = 5 The equation is exponential because the unknown is in the exponential power of 625
  • Unknown number 7
    percents2 16% of the unknown number is by 21 less than unknown number itself. Determine the natural unknown number.
  • Completing square
    eq2 Solve the quadratic equation: m2=4m+20 using completing the square method
  • Find the
    eq222 Find the number x, which if it increases by 2, then its square increases by 21 percent.
  • Power
    power Number ?. Find the value of x.
  • Unknown number 17
    5to2 Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
  • Diagonals in the diamond
    kosoctverec_color The length of one diagonal in diamond is 24 cm greater than the length of the second diagonal and diamond area is 50 m2. Determine the sizes of the diagonals.
  • Square vs rectangle
    ctverec Square and rectangle have the same area contents. The length of the rectangle is 9 greater and width 6 less than side of the square. Calculate the side of a square.
  • One-third
    krtek A one-third of unknown number is equal to five times as great as the difference of the same unknown number and number 28. Determine the unknown number.
  • Square root 2
    parabola If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
  • Unknown number 24
    numbs f we add 20, we get 50% of its triple. What is this unknown number?
  • Right isosceles
    right_isosceles_triangle Calculate area of the isosceles right triangle which perimeter is 26 cm.
  • Find the 2
    square Find the term independent of x in the expansion of (4x3+1/2x)8