Question

what is the result of multiplying $(0.5x - 2)(2x + 4)$?
a. $x^2 + 2x + 8$
b. $x^2 + 6x - 8$
c. $x^2 - 2x + 8$
d. $x^2 - 2x - 8$

Explanation:

Step1: Apply FOIL method

$(0.5x)(2x) + (0.5x)(4) + (-2)(2x) + (-2)(4)$

Step2: Calculate each term

$x^2 + 2x - 4x - 8$

Step3: Combine like terms

$x^2 - 2x - 8$

Answer:

d. $x^2 - 2x - 8$