Expanding Brackets: Find Out Where You Went Wrong

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The first two terms are -2e(e + 3) = -2e^2 - 6e, and the last two terms are 4(e + 2) = 4e + 8. The simplified expression is then (-2e^2 - 6e) + (4e + 8) = -2e^2 - 2e + 8. In summary, the simplified expression is -2e^2 - 2e + 8.
  • #1
Gringo123
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Where did I go wrong with this?

-2e(e + 3) + 4 (e + 2)

My answer is - 2e - 6e + 8
According to my book it should be - e - 3e + 6
 
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  • #2
correction
question is:
-2e(2 + 3) + 4(e squared + 2)
my wrong answer:
+2e squared + 6e + 8
right answer:
e squared - 3e + 6
 
  • #3
e[*SUP}2[*/SUP]
 
  • #4
[*tex]e^2[*/tex]
 
  • #5
Gringo123 said:
e[*SUP}2[*/SUP]
No "*" and use ] instead of the } (which, I assume, was a typo)
e2

Gringo123 said:
[*tex]e^2[*/tex]
No "*".
[tex]e^2[/tex]
 
  • #6
Gringo123 said:
Where did I go wrong with this?

-2e(e + 3) + 4 (e + 2)

My answer is - 2e - 6e + 8
According to my book it should be - e - 3e + 6
Please post the correct problem. You have so many corrections and changes, that I can't tell what you're trying to simplify.

If you understand the distributive property -- a(b + c) = ab + ac -- and combining like terms, this problem is straightforward.
 

FAQ: Expanding Brackets: Find Out Where You Went Wrong

What is the purpose of expanding brackets?

The purpose of expanding brackets is to simplify algebraic expressions by multiplying the terms inside the brackets by the term outside the brackets. This process helps to remove parentheses and make the expression easier to evaluate.

What are the steps to expand brackets?

The steps to expand brackets are:1. Distribute the term outside the brackets to each term inside the brackets.2. Simplify any like terms.3. Remove the brackets.

How do I know where I went wrong when expanding brackets?

If you have made an error while expanding brackets, you can use the distributive property to check your work. Simply multiply the term outside the brackets by each term inside the brackets and see if it matches the original expression. If not, you can identify where you made a mistake.

Can I use the distributive property to expand brackets with more than two terms?

Yes, the distributive property can be used to expand brackets with any number of terms. Simply distribute the term outside the brackets to each term inside, and then simplify any like terms.

Why is it important to expand brackets correctly?

Expanding brackets correctly is important because it allows for simplification of algebraic expressions, making them easier to evaluate and solve. Inaccurate expansion can lead to incorrect solutions and a lack of understanding of the underlying concepts.

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