Question

1. $2(5x^2 + 4x + 7)$

a) $12x^2 - 12x - 8$
b) $8x^2 - 4x + 6$
c) $3x^2 - 15x - 21$
d) $10x^2 + 8x + 14$

Explanation:

Step1: Distribute the 2 to each term

\(2 \times 5x^2 + 2 \times 4x + 2 \times 7\)

Step2: Calculate each product

\(10x^2 + 8x + 14\)

Answer:

D) \(10x^2 + 8x + 14\)