A perfect square is an integer which is the square of another integer n , that is, n2 . (Since a negative times a negative is positive, **a perfect square is always positive**.

## Can a perfect square be a negative integer?

**A negative number cannot be a perfect square**, and this is because of the following two facts: Any positive number multiplied by itself gives a…

## Can a integers number be negative?

it said that integers are just like whole numbers, but **also include negatives**.

### What negative number is not an integer?

– Any negative fraction (rational number) that doesn’t equate to an integer — such as -1/2, -5/4, -293/141, etc. But -4/2 IS an integer because it is equal to -2. – Any negative irrational number is NOT an integer — such as -√2, **-π**, etc.

### Can an integer be?

An integer (pronounced IN-tuh-jer) is a whole number (not a fractional number) **that can be positive, negative, or zero**. Examples of integers are: -5, 1, 5, 8, 97, and 3,043. Examples of numbers that are not integers are: -1.43, 1 3/4, 3.14, . 09, and 5,643.1.

### Can a square be negative?

**Yes, you can square a negative number**. … This is because to square a number just means to multiply it by itself. For example, (-2) squared is (-2)(-2) = 4. Note that this is positive because when you multiply two negative numbers you get a positive result.

### Is square an integer?

In mathematics, a square number or perfect square is **an integer that is the square of an integer**; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 3^{2} and can be written as 3 × 3. … so 9 is a square number.

### Is negative 81 a perfect square?

The square root of a number is the number that when multiplied to itself gives the original number as the product. Finding the square root of a number is the **inverse** of squaring a number. This shows that 81 is a perfect square.

### Why is a square always positive?

Answer: Yes. If a number is squared, it becomes positive.

The square of a number can be found by multiplying the number by itself. Explanation: **The product of two negative numbers is always positive**.

### Are squares always even?

If you start with an even number, **the square will always be even**. When you subtract any number from an even number, the answer is always even. It turns out even every time because if you start with an odd number, the square is odd, and if you subtract an odd number from an odd number, the answer is always even.

### What is a positive square?

Every number except 0 has two square roots, a positive and a negative. The positive square root is **the principal square root** and is written √b . To denote the negative root, write −√b and to indicate both roots write ±√b .

### Is there zero squared?

Informally: When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.

### Can a perfect square root be negative?

**Negative numbers don’t have real square roots** since a square is either positive or 0. The square roots of numbers that are not a perfect square are members of the irrational numbers. This means that they can’t be written as the quotient of two integers.

### How do you find an integers opposite?

To find the opposite of an integer, we **just change its sign**. If it is negative, change to positive. If it is positive change to negative. Opposite integers are the pairs of integers that have the same absolute value, or the same distance from zero.

### Why can’t I square a negative number?

Any number times itself is a positive number (or zero), so you can’t ever get to a negative number by **squaring**. Since square roots undo squaring, negative numbers can’t have square roots.

### Is negative 15 an integer?

Fractions and decimals are not included in the set of integers. For example, 2,5,0,−12,244,−15 and 8 are all integers. … The whole numbers greater than 0 are called positive integers . Their opposites, which are less than 0 , are called negative integers .

### Is negative 7 a integer?

Integer Examples

Negative Integers: −1, −2, −3, −4, −5 – 1 , – 2 , – 3 , – 4 , – 5 and so on, without end. Non-negative Integers: 0 and all positive whole numbers, like 6, 7, 8, 9 6 , 7 , 8 , 9 , and so on. Positive Integers: 1, 2, 3, 4, 5 1 , 2 , 3 , 4 , 5 , without end … Zero: 0 all by itself.

### Is 13.9 a real number?

is a decimal number therefore can neither be a whole number nor an integer. **13.9 is a rational number as well as a real number**.