Question

Bantu jawab dilingkari

Answer 1

6.
f'(x) = 12x² - 4x + 3
f'(3) = 12.3² - 4.3 + 3
f'(3) = 108-12+3
f'(3) = 99 (A)

7.
f(x) = (x+1)(x-1)
f(x) = x² - 1
f'(x) = 2x
f'(-1) = -2 (C)