y=x⁵+5x⁴+5x³+1 [-1;2]
y'=5y⁴+20x³+15x²=5x²*(x²+4x+3)=0
5x²=0 x²=0 x₁=0
x²+4x+3=0 D=4 √D=2 x₂=-1 x₃=-3 ⇒
y(-1)=(-1)⁵+5*(-1)⁴+5*(-1)³+1=-1+5*1+5*(-1)+1=-1+5-5+1=0=yнаим.
y(0)=0⁵+5*0⁴+5*0³+1=0+0+0+1=1.
y(2)= 2⁵+5*2⁴+5*2³+1=32+5*16+5*8+1=32+80+40+1=153=yнаиб.
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y=x⁵+5x⁴+5x³+1 [-1;2]
y'=5y⁴+20x³+15x²=5x²*(x²+4x+3)=0
5x²=0 x²=0 x₁=0
x²+4x+3=0 D=4 √D=2 x₂=-1 x₃=-3 ⇒
y(-1)=(-1)⁵+5*(-1)⁴+5*(-1)³+1=-1+5*1+5*(-1)+1=-1+5-5+1=0=yнаим.
y(0)=0⁵+5*0⁴+5*0³+1=0+0+0+1=1.
y(2)= 2⁵+5*2⁴+5*2³+1=32+5*16+5*8+1=32+80+40+1=153=yнаиб.