Respuesta :

nicole122603

Answer:

[tex]3x^{3} +10x^{2} +17x+12[/tex]

Step-by-step explanation:

Space

Answer:

3x³ + 10x² + 17x + 12

Step-by-step explanation:

Step 1: Write expression

(3x + 4)(x² + 2x + 3)

Step 2: Distribute 3x

3x³ + 6x² + 9x

Step 3: Distribute 4

4x² + 8x + 12

Step 4: Combine

3x³ + 6x² + 9x + 4x² + 8x + 12

Step 5: Combine like terms

3x³ + 10x² + 17x + 12