Question

expand. your answer should be a polynomial in standard form. \\((x + 5)(x + 3) = \square\\)

Explanation:

Step1: Apply FOIL method

$x \cdot x + x \cdot 3 + 5 \cdot x + 5 \cdot 3$

Step2: Calculate each term

$x^2 + 3x + 5x + 15$

Step3: Combine like terms

$x^2 + (3x + 5x) + 15 = x^2 + 8x + 15$

Answer:

$x^2 + 8x + 15$