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Multiply the polynomial expression (x+2)(x−4) .(2 points) __ x^2 + __x + __Question
Multiply the polynomial expression (x+2)(x−4) .(2 points)
x2+x+
x2+x+
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Answered by
GPT-4o mini
To multiply the polynomial expressions \((x + 2)(x - 4)\), you can use the distributive property (FOIL method):
1. **First terms:** \(x \cdot x = x^2\)
2. **Outer terms:** \(x \cdot (-4) = -4x\)
3. **Inner terms:** \(2 \cdot x = 2x\)
4. **Last terms:** \(2 \cdot (-4) = -8\)
Now, combine all these results:
\[
x^2 - 4x + 2x - 8
\]
Combine like terms:
\[
x^2 - 2x - 8
\]
So, the result of multiplying \((x + 2)(x - 4)\) is:
\[
x^2 - 2x - 8
\]
1. **First terms:** \(x \cdot x = x^2\)
2. **Outer terms:** \(x \cdot (-4) = -4x\)
3. **Inner terms:** \(2 \cdot x = 2x\)
4. **Last terms:** \(2 \cdot (-4) = -8\)
Now, combine all these results:
\[
x^2 - 4x + 2x - 8
\]
Combine like terms:
\[
x^2 - 2x - 8
\]
So, the result of multiplying \((x + 2)(x - 4)\) is:
\[
x^2 - 2x - 8
\]
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