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Q: The square of a certain positive number plus the number itself is 42 find the number?

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a positive number multiplied by itself

Every number has two square roots ... a positive one and a negative one. Example: +2 and -2 are both square roots of 4, because when you multiply either of them by itself, the answer is 4. The positive square root of a number is the square root that's not negative. The non-negative square root of a number is the positive one.

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If the number is one, then it is the smallest positive square.

It is not possible for a negative number to have a square root. Any square root is the number that, when you multiply it by ITSELF it will equal the number you are square rooting. Example: The square root of 4 is 2. 2 times itself(2x2) is 4. Negative numbers are imposable to square root because the square root cannot be multiplied by its opposite ( i.e. -2 times 2 or 4 times -4), it must be multiplied by itself. Any positive multiplied by a positive is a positive, and any negative multiplied by a negative is a positive. So any number times ITSELF will always be a positive. ( i.e. -4 time -4 is 16 as 4 times 4 is also sixteen.) If a squared square root is always positive then a negative number cannot have a square root. It's imposable.* * * * *True for basic mathematics but not so for more advanced mathematics. There is a whole area of mathematics called complex mathematics which is based on the square root of negative numbers. The square root of -1 is defined as i.

Related questions

What do you get when you multiply positive 3 by itself ? (You get 9.) What do you get when you multiply negative 3 by itself ? (You get 9 again.) The square root of a number is something which, when you multiply it by itself, gives you the number. When we multiplied positive 3 by itself, we got 9. So positive 3 is a square root of 9. When we multiplied negative 3 by itself, we got 9 again. So negative 3 is also a square root of 9. Every positive number has two square roots. They're both the same digits, but one is positive and the other one is negative.

a positive number multiplied by itself

#2. since 1 is a square number. and a prime number is positive with only two positive natural number divisors: 1 and itself.

A number multiplied by itself produces a square number. The original number is the square root of a square. So, the square root of 17.4 which is written as √ 17.4 = ±4.1713 (4dp) NOTE : The answer can be +4.1713 or -4.1713 as each number when squared (multiplied by itself) produces the positive number 17.4

The square of a positive number is positive. By the way, the square of a negative number is also positive.

The square root of 5 is the positive real number that, when multiplied by itself, gives the prime number 5.

When you square a real number the answer is positive,

Every number has two square roots ... a positive one and a negative one. Example: +2 and -2 are both square roots of 4, because when you multiply either of them by itself, the answer is 4. The positive square root of a number is the square root that's not negative. The non-negative square root of a number is the positive one.

I think it is Xi (whatever the square root of the positive is times i). i is an imaginary number that when you square it, it becomes negative. eg. the square root of -4 is 2i. Without "i", it would be impossible to square root a negative number, as any number times itself will always equal a positive.

In Mathematics, a square number is an integer that is the square of another integer. It is equal to a positive whole number multiplied by itself. For example, 9 is a square number because it is equal to 3x3.

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A perfect square is the square of an integer, i.e., an integer multiplied by itself. For example, 25 is a perfect square, because 5 x 5 = 25. But, in literal mathematical terms, a perfect number is a positive integer that is the sum of its proper positive divisors, excluding the number itself. A square number is also called a "perfect square", so an example of a square number is above. So, a perfect square number would have to be a number that is both perfect and square, and there are yet to be any of these numbers "discovered".

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