Question

Find the third term in the expansion of (x^2-4)^6

Answer 1

x in (-oo:+oo)

x/2-4 = -6 // + 6

x/2-4+6 = 0

1/2*x+2 = 0 // - 2

1/2*x = -2 // : 1/2

x = -2/1/2

x = -4

x = -4