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What square of a number minus five times the number is 6 Find all such numbers?
Wiki User
∙ 13y ago
x^2-5x-6+0
(X-6)(x+1) = 0
X = 6
X = -1
or you can use quadratic formula
x = (-b+/-sqrt(b^2-4ac))/2 where a = 1 b = -5 c = -6
X = 6,-1
Wiki User
∙ 13y ago
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What 2 numbers times together to get -20 and add up to get 2?
The numbers are: 1 plus square root of 21 and 1 minus square root of 21
Three times a number minus twice another number is 11 The sum of the two numbers is 7 what are the two numbers?
5 and 2
The sum of two numbers is 14. The larger number minus three times the lesser number is -2. What is the lesser number?
16
Why is square numbers called square numbers?
They are called square numbers because they can form a square and the square is one number times itself. They are called square numbers because they represent the area of a square with integer sidelengths. Example: 49. 49 is the area of a 7x7 square, so 49 is a square number.
Is the square of negative 54 rational'?
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
Can there be two numbers whose square is same?
No, because the square of a number is that number times itself, so a no two numbers will have the same square.
What 2 numbers times together to get -20 and add up to get 2?
The numbers are: 1 plus square root of 21 and 1 minus square root of 21
Is 13 a Square Numbers?
No. A square number is the product of a number multiplied by itself. Nine (3 times 3) and 16(4 times 4) are the two square numbers closest to 13.
Three times a number minus twice another number is 11 The sum of the two numbers is 7 what are the two numbers?
5 and 2
The sum of two numbers is 13 two times the first number minus three times the second number is 1 what are the two numbers?
x = 8, y = 5
The sum of two numbers is 14. The larger number minus three times the lesser number is -2. What is the lesser number?
16
Is the square root of 49 irrational?
No. The square root of 49 is plus or minus 7, both of which are integers. And integers are rational numbers - whether they are positive or negative.
Why is square numbers called square numbers?
They are called square numbers because they can form a square and the square is one number times itself. They are called square numbers because they represent the area of a square with integer sidelengths. Example: 49. 49 is the area of a 7x7 square, so 49 is a square number.
What numbers are multiple of 7 and a square number?
Just multiply 7 times any square number.
Is the square of negative 54 rational'?
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
What is the square root of minus 8?
The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.
Four times the square of a number is 16 Find the number?
You need to work backwards from the answer of 16. Dividing 16 by 4 gives you 4. The square root of 4 is 2. Your number is 2. Check your answer - 2 squared is 4. 4 times this 4 is 16. It can also be -2 (minus or negative 2) because when you multiply (or square) two negative numbers, the answer becomes a positive number.
