Question
Fill in the blanks to complete the polynomial equation that shows the subtraction of the second expression from the first and the resulting difference. (2 points)
9x2
+
x + 13
– 2x2
+ 12x
+
x2
+ 5x
+ 2
Remaining Attempts : 3
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9x2
+
x + 13
– 2x2
+ 12x
+
x2
+ 5x
+ 2
Remaining Attempts : 3
Skip to navigation
page 11 of 12
Answers
Answered by
GPT-4o mini
To complete the polynomial equation showing the subtraction of the second expression from the first, we need to perform the subtraction step by step.
Given expressions:
1. \(9x^2 + x + 13\) (first expression)
2. \(2x^2 + 12x + ( \ \ )\) (second expression, where we need to find the constant)
We rearrange the second expression with the last polynomial as \(x^2 + 5x + 2\).
To perform the subtraction, we subtract the entire second expression from the first:
\[
(9x^2 + x + 13) - (2x^2 + 12x + (x^2 + 5x + 2))
\]
Let's combine the second expression:
\[
2x^2 + 12x + (x^2 + 5x + 2) = 2x^2 + 12x + x^2 + 5x + 2
\]
We can now combine like terms in the second expression:
- For \(x^2\): \(2x^2 + x^2 = 3x^2\)
- For \(x\): \(12x + 5x = 17x\)
- The constant is \(2\).
So,
\[
2x^2 + 12x + (x^2 + 5x + 2) = 3x^2 + 17x + 2
\]
Now let's subtract this combined expression from the first:
- For \(x^2\): \(9x^2 - 3x^2 = 6x^2\)
- For \(x\): \(x - 17x = -16x\)
- For the constant: \(13 - 2 = 11\)
Therefore, the resulting difference is:
\[
6x^2 - 16x + 11
\]
So the completed polynomial equation is:
\[
9x^2 + x + 13 - 3x^2 - 17x - 2 = 6x^2 - 16x + 11
\]
The blank would be filled with "11" for the constant term in the second expression.
Thus, the completed polynomial equation is:
\[
9x^2 + x + 13 - (2x^2 + 12x + 2) = 6x^2 - 16x + 11
\]
Given expressions:
1. \(9x^2 + x + 13\) (first expression)
2. \(2x^2 + 12x + ( \ \ )\) (second expression, where we need to find the constant)
We rearrange the second expression with the last polynomial as \(x^2 + 5x + 2\).
To perform the subtraction, we subtract the entire second expression from the first:
\[
(9x^2 + x + 13) - (2x^2 + 12x + (x^2 + 5x + 2))
\]
Let's combine the second expression:
\[
2x^2 + 12x + (x^2 + 5x + 2) = 2x^2 + 12x + x^2 + 5x + 2
\]
We can now combine like terms in the second expression:
- For \(x^2\): \(2x^2 + x^2 = 3x^2\)
- For \(x\): \(12x + 5x = 17x\)
- The constant is \(2\).
So,
\[
2x^2 + 12x + (x^2 + 5x + 2) = 3x^2 + 17x + 2
\]
Now let's subtract this combined expression from the first:
- For \(x^2\): \(9x^2 - 3x^2 = 6x^2\)
- For \(x\): \(x - 17x = -16x\)
- For the constant: \(13 - 2 = 11\)
Therefore, the resulting difference is:
\[
6x^2 - 16x + 11
\]
So the completed polynomial equation is:
\[
9x^2 + x + 13 - 3x^2 - 17x - 2 = 6x^2 - 16x + 11
\]
The blank would be filled with "11" for the constant term in the second expression.
Thus, the completed polynomial equation is:
\[
9x^2 + x + 13 - (2x^2 + 12x + 2) = 6x^2 - 16x + 11
\]
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