Question

QUICKEST 100 POINTS EVER!

Answer 1

Answer:

• D. 25x⁴ + 30x³ + 29x² + 12x + 4

Step-by-step explanation:

• (5x² + 3x + 2)² =
• (5x² + 3x + 2)(5x² + 3x + 2) =
• 5x²(5x² + 3x + 2) + 3x(5x² + 3x + 2) + 2(5x² + 3x + 2) =
• 25x⁴ + 15x³ + 10x² + 15x³ + 9x² + 6x + 10x² + 6x + 4 =
• 25x⁴ + 30x³ + 29x² + 12x + 4

Correct choice is D

Answer 2

Answer:

D. 25x⁴ + 30x³ + 29x² + 12x + 4

Step-by-step explanation:

(5x² + 3x + 2)² =

(5x² + 3x + 2)(5x² + 3x + 2) =

5x²(5x² + 3x + 2) + 3x(5x² + 3x + 2) + 2(5x² + 3x + 2) =

25x⁴ + 15x³ + 10x² + 15x³ + 9x² + 6x + 10x² + 6x + 4 =

25x⁴ + 30x³ + 29x² + 12x + 4