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It is due to the way in which a calculator does its calculations. Most calculators follow BIDMAS which stands for; brackets, indices, division, multiplication, addition and subtraction. Since indices are calculated before subtraction, the number will be squared before it is recognised as being negative.

Q: Why are brackets needed to square negative numbers on a calculator?

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You multiply the number together - using a calculator if needed.

I am glad you asked, I had some homework on positive and negative numbers and needed info, the countries that use these kind of numbers are definitely USA and the UK.

Yes, but they are imaginary - but are needed in many mathematical calculations. The square root of negative 1 is indicated as the letter "i".

No. Inventory and engineering work need negative numbers to measure. Also, how can we measure the temperature if it's freezing cold without negative numbers? Integers are needed for calculations and measurements in this world.

M =1000 But when brackets and superscripts are added to this numeral larger numbers can be expressed: (M)M = 1000*1000*1000 = 1,000,000,000 which is one billion. If needed even larger numbers can be expressed by this method.

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If you were to do -92, following the order of operations, exponents come before subtraction. Because of this -92 = -(92) which is -81. The quantity negative nine, squared, however is positive 81. In order to show that you want the entire quantity negative nine squared, you must use parenthesis (or brackets): (-9)2 = 81. This shows to do the "subtraction" first.

You multiply the number together - using a calculator if needed.

There are a few different numbers that are needed in order to use a mortgage calculator to find out how much one can borrow. Generally a salary is needed, along with how many live in the household.

It had something to do with the gods

I am glad you asked, I had some homework on positive and negative numbers and needed info, the countries that use these kind of numbers are definitely USA and the UK.

Scientific calculators can calculate numbers into scientific notation, great for earth science and chemistry class. These are made by Texas Instruments.

Yes, but they are imaginary - but are needed in many mathematical calculations. The square root of negative 1 is indicated as the letter "i".

No. Inventory and engineering work need negative numbers to measure. Also, how can we measure the temperature if it's freezing cold without negative numbers? Integers are needed for calculations and measurements in this world.

M =1000 But when brackets and superscripts are added to this numeral larger numbers can be expressed: (M)M = 1000*1000*1000 = 1,000,000,000 which is one billion. If needed even larger numbers can be expressed by this method.

Brackets are used in different ways in a spreadsheet. Most commonly you will see them in functions, with what is needed for the function, referred to as arguments, being put inside the brackets. All functions have brackets and most require that something is put inside them. Examples include the following:=SUM(A1:A15)=Left(A2,5)Brackets can be used in calculations to change the precedence of operators. This is standard from the laws of mathematics. For example, in mathematics you do all multiplications and divisions before any additions and divisions. The following calculation gives 20, not 60, because the multiplication has to be done first:=10+2*5To get the 10+2 done first, which will make the final result 60, you would include it in brackets, like this:=(10+2)*5Brackets are sometimes used to indicate negative numbers, instead of using the minus sign. The proper name for these kind of brackets or round brackets is parentheses. You will also see the curly brackets { and } which are properly called braces. They are used to indicate arrays, which are lists of values that can be used in formulas.

The roman numerals don't have a way to write 0, negative numbers, or fractions.

"The information that is needed for a mortgage calculator will be income and source of other income, debt and other assets that can be used to determine payments."