Question
\( ( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) = \square + \square = \square + \square = \square = \square \)
Ask by Fuentes Washington. in the United States
Mar 11,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
\( 5x^2 - 11x - 4 \)
Solution
To solve the expression \( ( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) \), we will follow these steps:
1. Distribute the negative sign across the second polynomial.
2. Combine like terms.
Let's start with the first step:
1. Distributing the negative sign:
\[
( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) = x ^ { 2 } - 3 x + 5 + 4 x ^ { 2} - 8 x - 9
\]
2. Now, we will combine like terms:
- Combine \( x^2 \) terms: \( x^2 + 4x^2 = 5x^2 \)
- Combine \( x \) terms: \( -3x - 8x = -11x \)
- Combine constant terms: \( 5 - 9 = -4 \)
Putting it all together, we have:
\[
5x^2 - 11x - 4
\]
Now, we can express this in the format requested:
\[
5x^2 + (-11x) + (-4) = \square + \square + \square
\]
Thus, the final answer is:
\[
5x^2 + (-11x) + (-4) = 5 + (-11) + (-4) = \square + \square + \square
\]
So, the values for the squares are:
- First square: \( 5 \)
- Second square: \( -11 \)
- Third square: \( -4 \)
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Bonus Knowledge
First, let's simplify the expression step by step. Start by distributing the negative sign through the second polynomial: \[ ( x^2 - 3x + 5) + (4x^2 - 8x - 9) \] Now, combine like terms: - For \( x^2 \): \( x^2 + 4x^2 = 5x^2 \) - For \( x \): \( -3x + (-8x) = -11x \) - For constants: \( 5 + (-9) = -4 \) Bringing it all together, we get: \[ 5x^2 - 11x - 4 \] So, we can fill in the blanks as follows: \( ( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) = 5 x ^ { 2 } + ( - 11 x ) + ( - 4 ) = 5 x ^ { 2 } + (-11 x) + (-4) = 5 x ^ { 2 } - 11 x - 4 = 0 \)