Răspuns:
Explicație pas cu pas:
a)
f'(x)=2x-7=0 minim x=7/2
f(7/2)=49/4-49/2+10 = (49-2x49-40)/4=-89/4=-22,25
b)f'(x)=2x+7 minim x=-7/2
f(-7/2)=49/4+49/2-12=(49+2x49-48)/4=99/4=24,75
c) f'(x)=2x minim x=0
f(0)==5 A (0,-5)
d) f'(x)=24x+31 mimin x=-31/24
f(-31,24)=961/576+31x31/24-1=[961x3-576)/24=2307/24
e)f'(x)=2x-2 x=1 minim
f(1)=0 A(1,0)
