Question

The coefficient of x² in (3x ²-5) (4+4x²) is​

Answer 1

⛄ Required Solution-

★Given That, (3x² - 5) (4 + 4x²)

= (3x² × 4) + (3x² × 4x²) + (-5 × 4) + (-5 × 4x²)

= 12x² + 12x⁴ - 20 - 20x²

= - 8x² + 12x⁴ - 20

Thus, the coefficient of x² is -8