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
The numbers are: 1 plus square root of 21 and 1 minus square root of 21
5 and 2
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.
16
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
No, because the square of a number is that number times itself, so a no two numbers will have the same square.
The numbers are: 1 plus square root of 21 and 1 minus square root of 21
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.
5 and 2
x = 8, y = 5
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.
16
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.
Just multiply 7 times any square number.
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
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.
The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.