1)f(x)=8х+2=0 8х+-2 х=-1/4 2) f(х)= 2х+1=0 2х=-1 х=-1/2 наверное так
1. (4x^2+2x)' = 8x+2
f'(x) = 0; 8x+2 = 0
8x = -2
x = -0.25
2. (x^2+x-1)' = 2x+1
f'(x) = 0; 2x+1 = 0
2x = -1
x = -0.5
1)f(x)=8х+2=0 8х+-2 х=-1/4 2) f(х)= 2х+1=0 2х=-1 х=-1/2 наверное так
1. (4x^2+2x)' = 8x+2
f'(x) = 0; 8x+2 = 0
8x = -2
x = -0.25
2. (x^2+x-1)' = 2x+1
f'(x) = 0; 2x+1 = 0
2x = -1
x = -0.5