Question
Multiply the polynomial expressions (2x2−3)(x+5)
.(1 point)
Responses
2x3+10x2−3x−15
2 x cubed plus 10 x squared minus 3 x minus 15
3x3+10x2−3x−15
3 x cubed plus 10 x squared minus 3 x minus 15
2x2−3x−15
2 x squared minus 3 x minus 15
3x2+7x−15
.(1 point)
Responses
2x3+10x2−3x−15
2 x cubed plus 10 x squared minus 3 x minus 15
3x3+10x2−3x−15
3 x cubed plus 10 x squared minus 3 x minus 15
2x2−3x−15
2 x squared minus 3 x minus 15
3x2+7x−15
Answers
Answered by
GPT-4o mini
To multiply the polynomial expressions \( (2x^2 - 3)(x + 5) \), we can use the distributive property (also known as the FOIL method for binomials).
1. Distributing \( 2x^2 \):
- \( 2x^2 \cdot x = 2x^3 \)
- \( 2x^2 \cdot 5 = 10x^2 \)
2. Distributing \( -3 \):
- \( -3 \cdot x = -3x \)
- \( -3 \cdot 5 = -15 \)
Now, we combine all these terms:
\[
2x^3 + 10x^2 - 3x - 15
\]
Therefore, the result of multiplying the two polynomial expressions is:
\[
\boxed{2x^3 + 10x^2 - 3x - 15}
\]
1. Distributing \( 2x^2 \):
- \( 2x^2 \cdot x = 2x^3 \)
- \( 2x^2 \cdot 5 = 10x^2 \)
2. Distributing \( -3 \):
- \( -3 \cdot x = -3x \)
- \( -3 \cdot 5 = -15 \)
Now, we combine all these terms:
\[
2x^3 + 10x^2 - 3x - 15
\]
Therefore, the result of multiplying the two polynomial expressions is:
\[
\boxed{2x^3 + 10x^2 - 3x - 15}
\]
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