78990
AssignmentMultiple Choice

Multiplying Monomials and Binomials

Question 78990 • Fall 24 GMS Algebra: Concepts and Connections A

Multiply: (5t – 4)(4t + 5)What is the product?

Answer
A
20t2 + 9t – 20
B
20t2 + 18t – 19
C
20t2 + 25t – 36
D
20t2 + 41t – 20

Explanation

Multiply each term in the first binomial by each term in the second: (5t)(4t) + (5t)(5) + (−4)(4t) + (−4)(5). This gives 20t² + 25t − 16t − 20, which simplifies to 20t² + 9t − 20, choice A.

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