Question

Diketahui f(x) = x² + 4x - 3 .tentukanlah:
a. f'( x )
b. f'( 0 )
c. f'( 1 )
d. f'( -2 )
e. nilai x, jika diketahui f'(x) = -1


tolong broooo

Answer 1

F'(x)=2x+4
f'(0)=2(0)+4
=4
f'(1)=2(1)+4
=6
f'(-2)=2(-2)+4
=0
f'(x)=1
2x-4=1
2x=5
x=5/2