Question

find the product. simplify your answer.
$(u + 3)(3u - 1)$

Explanation:

Step1: Apply FOIL method

$(u+3)(3u-1) = u(3u) + u(-1) + 3(3u) + 3(-1)$

Step2: Calculate each term

$= 3u^2 - u + 9u - 3$

Step3: Combine like terms

$= 3u^2 + (-u + 9u) - 3$

Answer:

$3u^2 + 8u - 3$