Solve -(-6)²: Order of Operations with Negative Squares

Negative Signs with Squared Parentheses

(6)2= -(-6)^2=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 First let's calculate the sign
00:07 Even power, therefore the sign will be positive
00:11 Now let's calculate the power
00:26 Negative times positive always equals negative
00:30 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

(6)2= -(-6)^2=

2

Step-by-step solution

To solve the problem of evaluating (6)2-(-6)^2, we will follow these steps:

  • Step 1: Calculate the square of 6-6.
  • Step 2: Apply the negative sign to the result obtained from the first step.

Let's work through these steps:
Step 1: Calculate (6)2(-6)^2. We know that when squaring a negative number, the result becomes positive: (6)×(6)=36(-6) \times (-6) = 36.
Step 2: Now apply the negative sign to this result. The expression is (36)-(36), which equals 36-36.

Therefore, the solution to the problem is 36-36.

3

Final Answer

36 -36

Key Points to Remember

Essential concepts to master this topic
  • Order of Operations: Parentheses first, then exponents, then multiplication/division
  • Technique: Calculate (6)2=36(-6)^2 = 36, then apply the negative sign
  • Check: Verify (6)2=(36)=36-(-6)^2 = -(36) = -36 follows PEMDAS correctly ✓

Common Mistakes

Avoid these frequent errors
  • Applying the negative sign before squaring
    Don't calculate ((6))2=62=36(-(-6))^2 = 6^2 = 36! This ignores order of operations and treats the outer negative as part of the base. Always square first: (6)2=36(-6)^2 = 36, then apply the negative: (36)=36-(36) = -36.

Practice Quiz

Test your knowledge with interactive questions

\( \)\( -(2)^2= \)

FAQ

Everything you need to know about this question

Why doesn't the negative sign cancel out when we square?

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The negative sign outside the parentheses isn't part of what gets squared! Only (6)(-6) gets squared to equal 36, then we apply the outer negative sign to get 36-36.

What's the difference between (6)2-(-6)^2 and ((6))2(-(-6))^2?

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In (6)2-(-6)^2, only (6)(-6) gets squared first. In ((6))2(-(-6))^2, we simplify inside parentheses first to get 62=366^2 = 36. Parentheses placement matters!

How do I remember the order of operations here?

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Use PEMDAS! First handle what's in parentheses (6)2(-6)^2, then apply the negative sign outside. Think of it as two separate steps.

Will the answer always be negative in problems like this?

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Not always! It depends on the expression. (6)2=36-(-6)^2 = -36 is negative, but (6)3=(216)=216-(-6)^3 = -(-216) = 216 would be positive because we're negating a negative result.

What if there was no parentheses around -6?

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Without parentheses, 62--6^2 would mean (62)=36-(6^2) = -36. The result is the same here, but parentheses make the order crystal clear and prevent confusion!

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