Chapter 1: Problem 286
Simplify each expression. $$ -4(-6)(3) $$
Short Answer
Expert verified
The simplified expression is 72.
Step by step solution
01
- Evaluate the Inner Expression
First, simplify the expression within the parentheses. Since there are no parentheses involving operations inside, move to multiplying the constants directly.
02
- Multiply the First Two Numbers
Multiply the first two numbers: \begin{align*}-4 \times -6 &= 24\text{ (since a negative times a negative is a positive)}.d = 24\text{.}\text{NextStep}\text{}\text{ }Next,\text{}\text{calculate the final multiplication.} (24) \text{\(\times\)} 3 \text{ (\(eq {+}\))\frac{}{\text{id}}}
03
- Multiply the Result by the Remaining Number
Now, multiply the result from step 2 by the remaining number: \begin{align*}24 \times 3 &= 72.\text{\begin{align*}24 \(\times{}\) (3) \rightarrow 72.\text{(The multiplied values have no effect on significance)\text{}}\text{Finaloce{\thetapStatut{}punctuation=factorial note}}\text{ewline}\(Process.\)ewlineThe multiplied values will achieve the positive product of assemblies
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
multiplication of integers
Multiplication of integers is a core aspect of algebra and forms the foundation for many complex topics. Here are some key points to understand:
- Definition: Multiplication of integers involves taking one integer and adding it to itself a specified number of times. For example, \(3 \times 4\) means adding 3 to itself 4 times (3 + 3 + 3 + 3 = 12).
- Negative and Positive Rules: When multiplying integers, the sign of the result depends on the signs of the numbers being multiplied.
Rules include:- Positive \times Positive = Positive
- Negative \times Negative = Positive
- Positive \times Negative = Negative
- Multiplication Order: When you multiply multiple numbers together, you can do so in any order because multiplication is commutative (e.g., \(a \times b = b \times a\)).
properties of negative numbers
Dealing with negative numbers is crucial in algebra. Here are some essential properties:
- Sign Rule for Multiplication: Multiplying two negative numbers results in a positive product. If you multiply a negative number with a positive one, the product will be negative. This happens because of the rules of integer multiplication, which we covered earlier.
- Interpreting Negative Signs: The negative sign can be thought of as an instruction to 'take the opposite'. For instance, \( -4(-6)\) means taking the opposite of \(-4)\) six times, which results in a positive product.
- Absolute Value: The absolute value of a number is its distance from zero on the number line, regardless of direction. It helps simplify operations involving negatives. For example, the absolute value of -6 is 6. When multiplying negatives, think in terms of their absolute values to keep things simple and then apply the sign rules.
step-by-step problem solving
Breaking down a problem into manageable steps is key to mastering algebra. Here's an example based on the exercise:
1. Identify Components: First, determine what you are dealing with. In our example, \( -4(-6)(3)\), we recognize we need to multiply three integers.
2. Start with Two Numbers: To simplify, start by dealing with the first pair. Here, that means multiplying \( -4\) and \(-6)\). According to our rules, a negative times a negative is a positive, so \(-4 \times -6 = 24 \).
3. Repeat for Remaining Number: Now, take the result and multiply it by the third number. So, \( 24 \times 3 = 72 \).
4. Conclude: Your final answer becomes \( 72 \).
1. Identify Components: First, determine what you are dealing with. In our example, \( -4(-6)(3)\), we recognize we need to multiply three integers.
2. Start with Two Numbers: To simplify, start by dealing with the first pair. Here, that means multiplying \( -4\) and \(-6)\). According to our rules, a negative times a negative is a positive, so \(-4 \times -6 = 24 \).
3. Repeat for Remaining Number: Now, take the result and multiply it by the third number. So, \( 24 \times 3 = 72 \).
4. Conclude: Your final answer becomes \( 72 \).
- Notice the importance of handling operations step-by-step to avoid mistakes.
- Always consider integer rules and operation order.