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Do the work inside the parenthesis first.

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Q: What are the parenthesis in an equation mean?

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What I mean by this equation is: x^3-2x^(x-2.5)+x^(x^x)

You can remove parenthesis or bracket by multiplying the number outside, with the number inside the bracket.

3/2(1-5)=-6 3/2(-4)=-6 3/-8=-6 Not equal. This equation is a false equation. Unless a variable was meant to be in the equation, this equation is not equal.

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the equation is 5(a+2) if a is 1 than the answer is 15 if a is 2 than the answer is 20 if a is 3 than the answer is 25 etc...

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What I mean by this equation is: x^3-2x^(x-2.5)+x^(x^x)

You can remove parenthesis or bracket by multiplying the number outside, with the number inside the bracket.

Parentheses is when you are doing an equation, and you solve the problem.

3/2(1-5)=-6 3/2(-4)=-6 3/-8=-6 Not equal. This equation is a false equation. Unless a variable was meant to be in the equation, this equation is not equal.

the [ and ] brackets are for if you need an equation like [(9+1)+5] so if you need parenthesis in another parenthesis that is what its for and so is { and }

Multiply

(a^2+7a-8)/(a^2+6a-7) (original equation) (a+8)(a-1)/(a+7)(a-1) (simplify top and bottom) (a+8)/(a+7) <--answer

the equation is 5(a+2) if a is 1 than the answer is 15 if a is 2 than the answer is 20 if a is 3 than the answer is 25 etc...

a=64 b=8 (x+16x+64)=(x+8)^2

I believe you mean parenthesis..well it is when you use ( ) puntuation together and as a pair make up what is known to be parenthesis.

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Yes, when there are parenthesis in an equation, you have to use the distibutive property.