Twice squared
If the square of twice a number is 81, what is the number? Give a positive number x.
Final Answer:

Tips for related online calculators
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?
You need to know the following knowledge to solve this word math problem:
algebraarithmeticGrade of the word problem
Related math problems and questions:
- Positive number
Which positive number equals twice its square? - Equation 94
If 9 more than twice a number is 3 less than 3 times the same number. What is the number? - Wholes add to a mixed
What is 5 wholes + 1 and 3/8? Give your answer as a whole or mixed number in its simplest form. - Letter number puzzle
What number is under the letter D if: 88-A = 8 D = C: 10 B + 20 = A 5.B = C - If twice
If twice the daughter's age is added to the mother's age, the sum is 56. but if twice the mother's age is added to the daughter's age, the sum is 82. find the age of the mother and daughter. - The square
What number is the square root of 25 times the square root of 81? - Number twice less
The unknown number is twice less than 80
