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Sagot :
Certainly! Let's find the product of the two polynomials:
[tex]\[ (4y - 3) \left(2y^2 + 3y - 5\right) \][/tex]
To do this, we'll distribute each term in the first polynomial to each term in the second polynomial and then combine like terms.
1. First, distribute [tex]\(4y\)[/tex]:
[tex]\[ 4y \cdot 2y^2 = 8y^3 \][/tex]
[tex]\[ 4y \cdot 3y = 12y^2 \][/tex]
[tex]\[ 4y \cdot (-5) = -20y \][/tex]
2. Next, distribute [tex]\(-3\)[/tex]:
[tex]\[ -3 \cdot 2y^2 = -6y^2 \][/tex]
[tex]\[ -3 \cdot 3y = -9y \][/tex]
[tex]\[ -3 \cdot (-5) = 15 \][/tex]
3. Now combine all these results:
[tex]\[ 8y^3 + 12y^2 - 20y - 6y^2 - 9y + 15 \][/tex]
4. Combine like terms:
[tex]\[ 8y^3 + (12y^2 - 6y^2) + (-20y - 9y) + 15 \][/tex]
[tex]\[ 8y^3 + 6y^2 - 29y + 15 \][/tex]
So, the product is:
[tex]\[ 8y^3 + 6y^2 - 29y + 15 \][/tex]
From the given choices, the correct one is:
[tex]\[ 8 y^3 + 6 y^2 - 29 y + 15 \][/tex]
[tex]\[ (4y - 3) \left(2y^2 + 3y - 5\right) \][/tex]
To do this, we'll distribute each term in the first polynomial to each term in the second polynomial and then combine like terms.
1. First, distribute [tex]\(4y\)[/tex]:
[tex]\[ 4y \cdot 2y^2 = 8y^3 \][/tex]
[tex]\[ 4y \cdot 3y = 12y^2 \][/tex]
[tex]\[ 4y \cdot (-5) = -20y \][/tex]
2. Next, distribute [tex]\(-3\)[/tex]:
[tex]\[ -3 \cdot 2y^2 = -6y^2 \][/tex]
[tex]\[ -3 \cdot 3y = -9y \][/tex]
[tex]\[ -3 \cdot (-5) = 15 \][/tex]
3. Now combine all these results:
[tex]\[ 8y^3 + 12y^2 - 20y - 6y^2 - 9y + 15 \][/tex]
4. Combine like terms:
[tex]\[ 8y^3 + (12y^2 - 6y^2) + (-20y - 9y) + 15 \][/tex]
[tex]\[ 8y^3 + 6y^2 - 29y + 15 \][/tex]
So, the product is:
[tex]\[ 8y^3 + 6y^2 - 29y + 15 \][/tex]
From the given choices, the correct one is:
[tex]\[ 8 y^3 + 6 y^2 - 29 y + 15 \][/tex]
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