Question

Find the product of 2.1n(6n + 3.4).

12.6n + 3.4.

8.1n + 3.4.

8.1n2 + 7.14n.

12.6n2 + 7.14n.

Answer 1

12.6n2 + 7.14n.

Explanation:

2.1×n×(6n+3.4)

Rewrite the expression

2.1×n(6n+3.4)

Calculate the product

2.1n(6n+3.4)

Apply the distributive property

2.1n×6n+2.1n×3.4

Multiply the terms

12.6n

2

+2.1n×3.4

Solution

12.6n

2

+7.14n

Answer 2

The correct answer is 12.6n2 + 7.14n.

Explanation:

To find the product of 2.1n(6n + 3.4), we can use the distributive property of multiplication:

2.1n(6n + 3.4) = 2.1n(6n) + 2.1n(3.4)

Simplifying this expression gives:

12.6n^2 + 7.14n

Therefore, the product of 2.1n(6n + 3.4) is 12.6n^2 + 7.14n.