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One
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Well, since we are talking about a second-degree equation, we should at least check if there might be another root (it could be the same). The equation is:
x + x^2 = 2
iff x^2 + x - 2 = 0
iff (x+1/2)^2 - 2 - 1/4 = 0
iff (x+1/2)^2 = (3/2)^2
iff x+1/2 = +- 3/2
iff x = -2 or x = 1
Hence, the other solution is -2. Note that -2 + (-2)^2 = -2 + 4 = 2 as required.
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The difference of a number's square and its double is -1? Answer: one (and only one). Check this.
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What 2 digit number is the square of the sum of its digits?
81...........
When the sum of a number plus 3 is squared it is 9 more than the sum of the number plus 2 when squared-?
The sum of a number plus 3 to the square root of 9 to the sum of 2 would equal -2. This is a math problem.
What is the smallest square number that can be written as the sum of 2 different square numbers?
25 is the sum of 9 and 16. (52 = 32 + 42)
Is 25 the sum of number of 2 square numbers?
Yes 16+9=25
Are there two irrational number whose sum and production are rational?
Yes, for example: square root of 2, and the negative of the square root of 2.
The sum of a number and its square is 6 Find the number?
There are two solution: -3 and +2.
Shell program to find the sum of square of individual digits of a number?
There are many shell programs that will find the sum of the square of individual digits of a number. A small example is: SD=3n=2, sum=2, and SD=2.
What 2 digit number is the square of the sum of its digits?
81...........
What is the sum of the 3rd and 6Th square number?
The formula for finding the nth square number is n^2. Therefore, the 3rd square number is 3^2 = 9, and the 6th square number is 6^2 = 36. To find the sum of the 3rd and 6th square numbers, you add them together: 9 + 36 = 45. So, the sum of the 3rd and 6th square numbers is 45.
What is the sum of the 10th square number and the 14th square number?
sum of 14th square number and 10th square number
When the sum of a number plus 3 is squared it is 9 more than the sum of the number plus 2 when squared-?
The sum of a number plus 3 to the square root of 9 to the sum of 2 would equal -2. This is a math problem.
What is the smallest square number that can be written as the sum of 2 different square numbers?
25 is the sum of 9 and 16. (52 = 32 + 42)
What is the smallest square number that is the sum of two square numbersfind two squares numbers whose sum is a square number?
25 is a square number, and the sum of 9 and 16 is 25. 9 and 16 are also square numbers.
What number is a perfect square the only prime number in its prime factorization is 2 and the sum is odd?
16
What is the sum of the 15th square number and the 2nd cube number?
15² + 2³ = 225 + 8 = 233
Can every square from 5-15 be written as the sum of 2 prime numbers?
There is only one square number from 5-15: 9. This can be written as the sum of 2 and 7, which are prime numbers.
Is 25 the sum of number of 2 square numbers?
Yes 16+9=25
