Question

the coefficient of x² in (3 x² – 5) (4 + 4 x²).​

Answer 1

Answer:

coefficient of x^2 = 3 ,4.

Answer 2

(3x²-5) (4+4x²)

(3x²×4) (3x²×4x²)+(-5×4)+(-5×4x²)

12x²+12x⁴-20-20x²

8x²+12x²-4

Thus the coefficient of x²is -8