Question

5. The co-efficient of x² in (3x² - 5) (4 + 4x?) is
(a)12
(b)5
(c)-8
(d)8​

Answer 1

Answer:

a) 12

Step-by-step explanation:

(3x^2 - 5) (4 + 4x)

= 12x^2 + 12x^3 - 20 - 20x

So the co - efficient of x^2 in (3x^2 - 5) (4 + 4x) is 12