Question

10. The coefficient of x in the expansion of (x-4)² is
a. 7
b. -8
C. 4
d.-2​

Answer 1

Option b is correct answer

$( x - 4) {}^{2} \\ x {}^{2} - 2 \times x \times 4 + 4 {}^{2} \\ x {}^{2} - 8x + 1$

coefficient of x = -8