Question

(2x + 3)(2x + 5) 4x + 16x + 15 4x² + 16x + 15 4x² + 16x + 15x 4x² + 16 + 15

Explanation:

Step1: Expand using FOIL method

$(2x+3)(2x+5) = 2x\cdot2x + 2x\cdot5 + 3\cdot2x + 3\cdot5$

Step2: Calculate each term

$= 4x^2 + 10x + 6x + 15$

Step3: Combine like terms

$= 4x^2 + (10x+6x) + 15 = 4x^2 + 16x + 15$

Answer:

$4x^2 + 16x + 15$ (matches the blue option)