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If the sum of a number and its square is 72 then what is the number?
Wiki User
∙ 10y ago
x+x^2=72x^2 +x -72=0
(x+9)(x-8)=0
x=-9 or x=8
Wiki User
∙ 10y ago
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The sum of the number and its square is 72 what is the number?
82 + 8 = 64 + 8 = 72
The sum of the square if two consecutive positive numbers is 85 What is the smaller number?
62 + 72 = 85
What is the sum of all the factors of 30?
The sum of the positive whole-number factors of 30 is 72.
The sum of the squares of two consectutive positive numbers is 85 What is the smaller number?
The two square numbers are 72 + 62 = 49 + 36 = 85. The smaller number is therefore 6.
How do you determine that 72 is not a square number?
You take the square root of the number. If it is a perfect square, this will be a whole number. If it is not, it isn't a perfect square.
The sum of the number and its square is 72 what is the number?
82 + 8 = 64 + 8 = 72
Is 72 a square number?
no. 72 is not a square number.
The sum of the square if two consecutive positive numbers is 85 What is the smaller number?
62 + 72 = 85
What is the sum of the 10th square number and the 14th square number?
sum of 14th square number and 10th square number
The sum of a number and its square is 6 Find the number?
There are two solution: -3 and +2.
Is the number 72 a square number rectangular number or triangular number?
72 is rectangular.
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.
Is the sum of 36 a square number?
36 is a perfect square number.
What is the sum of the 13th square number and the 13th square number?
122
What is the sum of the 3rd square number and the 15th square number?
the answer is 34
Is the square root of 72 a rational or irrational number?
The square root of 72 is an irrational number. Since 72 is not a perfect square, the decimal is endless. (just like the value of pi)
8 times the sum of a number and 4 is 72 find the number?
5
