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-a2 differs from (-a)2 because the brackets change the order in which operations are done. Normally, exponents are handled before addition, subtraction, multiplication and division. This means that in the first expression, -a2, we are subtracting the square of the value a. In other words, our first expression could also be expressed as -(a × a). Brackets however are used to specify a set of operations that need to be done first. This means that our second expression would instead be broken down as (-a) × (-a).
The resulting difference between the two is that the first expression will always give us a negative number, and the second one will always give us a positive number (assuming imaginary numbers are not involved).
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How do you simplify x brackets x plus 1 brackets squared?
x[x+1] squared Simplified is, to my knowledge, x squared plus ( x + 1) squared
What are the types of parentheses and brackets?
The different types of brackets are: * round brackets, open brackets or parentheses: ( ) * square brackets, closed brackets or box brackets: [ ] * curly brackets, squiggly brackets, swirly brackets, braces, or chicken lips: { } * angle brackets, diamond brackets, cone brackets or chevrons: < > or ⟨ ⟩
What is 4 times 4 squared minus 7?
26 I got 57. First you do the exponents...4 squared=16 Next is multiplication...4 times 16=64 Finally minus 7...64-7=57. The answer would be different if there were brackets around part of the problem.
Where do you put the brackets 4 plus 2 divided by 3 squared plus 1?
4 + (2/32) + 1
What is 14 x11.4 squared?
The importance of brackets... 14 x (11.4)2 = 1819.44 (14 x 11.4)2 = 25,472.16
