The solution to the expression using the FOIL method is x⁴ - 6x² + 8
<h3>How to evaluate the expression using FOIL?</h3>
From the question, we have the following parameters that can be used in our computation:
(X2-2)(x2-4)
Rewrite the expression properly
So, we have
(x² -2)(x² - 4)
The FOIL method states that: First, Outside, Inside, and Last
Using the acronym as a guide, we have
(x² -2)(x² - 4)
Expand the expression
This gives
(x² -2)(x² - 4) = x²(x² - 4) -2(x² - 4)
Expand the brackets
So, we have the following representation
(x² -2)(x² - 4) = x⁴ - 4x² -2x² + 8
Collect the like terms
This gives
(x² -2)(x² - 4) = x⁴ - 4x² -2x² + 8
Lastly, we evaluate the like terms
(x² -2)(x² - 4) = x⁴ - 6x² + 8
Hence, the solution to the equation is x⁴ - 6x² + 8
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Answer:
$37.
Step-by-step explanation:
Firstly, let's set the price of each pair of shoe to be x.
Since each pair of shoes costs the same, and there are three pairs, we can set the original price to be 3x.
Now, to apply the shipping charge, all we have to do is add 7.50 to 3x, getting 3x + 7.5.
Next, to apply a 6% tax, we can multiple the whole expression by (100% + 6%), getting (3x + 7.5) 106%.
Since the whole bill foots to a total of $126.81, we can set the final equation to be:
Hope this helped!
Hi there!
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I believe your answer is:
No, it is not a function.
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Here’s why:
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- If we preform a vertical line test on the graph, then the line would pass the relation multiple times. This means that it is not a function.
- See the picture attached.
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Hope this helps you. I apologize if it’s incorrect.
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope: 0
y-intercept:
−3
Spin it with ctrl shift left click