Find trusted answers to your questions with the help of IDNLearn.com's knowledgeable community. Ask your questions and receive reliable and comprehensive answers from our dedicated community of professionals.
Sagot :
Certainly! Let's go through a detailed, step-by-step solution to find the expression equivalent to:
[tex]\[ (3y - 4)(2y + 7) + 11y - 9 \][/tex]
### Step 1: Expand the First Term
First, we need to expand the product [tex]\((3y - 4)(2y + 7)\)[/tex].
[tex]\[ (3y - 4)(2y + 7) = (3y \cdot 2y) + (3y \cdot 7) + (-4 \cdot 2y) + (-4 \cdot 7) \][/tex]
Calculating each term:
[tex]\[ (3y \cdot 2y) = 6y^2 \][/tex]
[tex]\[ (3y \cdot 7) = 21y \][/tex]
[tex]\[ (-4 \cdot 2y) = -8y \][/tex]
[tex]\[ (-4 \cdot 7) = -28 \][/tex]
Combining these, we get:
[tex]\[ 6y^2 + 21y - 8y - 28 = 6y^2 + 13y - 28 \][/tex]
### Step 2: Add the Remaining Terms
Now, add [tex]\(11y - 9\)[/tex] to the expanded expression:
[tex]\[ 6y^2 + 13y - 28 + 11y - 9 \][/tex]
Combine like terms:
[tex]\[ 6y^2 + (13y + 11y) - 28 - 9 = 6y^2 + 24y - 37 \][/tex]
### Step 3: Compare to Given Options
We have simplified the given expression to:
[tex]\[ 6y^2 + 24y - 37 \][/tex]
Now we compare this with the given options:
- A. [tex]\(16y - 6\)[/tex]
- B. [tex]\(6y^2 + 24y - 37\)[/tex]
- C. [tex]\(6y^2 + 11y + 18\)[/tex]
- D. [tex]\(9y - 37\)[/tex]
The simplified expression [tex]\(6y^2 + 24y - 37\)[/tex] matches option B.
### Conclusion
The expression equivalent to [tex]\((3y - 4)(2y + 7) + 11y - 9\)[/tex] is:
[tex]\[ \boxed{6y^2 + 24y - 37} \][/tex]
Therefore, the correct answer is:
[tex]\[ \boxed{B} \][/tex]
[tex]\[ (3y - 4)(2y + 7) + 11y - 9 \][/tex]
### Step 1: Expand the First Term
First, we need to expand the product [tex]\((3y - 4)(2y + 7)\)[/tex].
[tex]\[ (3y - 4)(2y + 7) = (3y \cdot 2y) + (3y \cdot 7) + (-4 \cdot 2y) + (-4 \cdot 7) \][/tex]
Calculating each term:
[tex]\[ (3y \cdot 2y) = 6y^2 \][/tex]
[tex]\[ (3y \cdot 7) = 21y \][/tex]
[tex]\[ (-4 \cdot 2y) = -8y \][/tex]
[tex]\[ (-4 \cdot 7) = -28 \][/tex]
Combining these, we get:
[tex]\[ 6y^2 + 21y - 8y - 28 = 6y^2 + 13y - 28 \][/tex]
### Step 2: Add the Remaining Terms
Now, add [tex]\(11y - 9\)[/tex] to the expanded expression:
[tex]\[ 6y^2 + 13y - 28 + 11y - 9 \][/tex]
Combine like terms:
[tex]\[ 6y^2 + (13y + 11y) - 28 - 9 = 6y^2 + 24y - 37 \][/tex]
### Step 3: Compare to Given Options
We have simplified the given expression to:
[tex]\[ 6y^2 + 24y - 37 \][/tex]
Now we compare this with the given options:
- A. [tex]\(16y - 6\)[/tex]
- B. [tex]\(6y^2 + 24y - 37\)[/tex]
- C. [tex]\(6y^2 + 11y + 18\)[/tex]
- D. [tex]\(9y - 37\)[/tex]
The simplified expression [tex]\(6y^2 + 24y - 37\)[/tex] matches option B.
### Conclusion
The expression equivalent to [tex]\((3y - 4)(2y + 7) + 11y - 9\)[/tex] is:
[tex]\[ \boxed{6y^2 + 24y - 37} \][/tex]
Therefore, the correct answer is:
[tex]\[ \boxed{B} \][/tex]
We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Thank you for trusting IDNLearn.com with your questions. Visit us again for clear, concise, and accurate answers.