Tìm min: M = 10 - 8x + x^2

tìm mim:
M=10-8x+x^2
N=16x^2+4x-1
P=25x^2+5x+7
j=(x+1).(2x-1)+2x^2
K=(x-1).(x+2).(x+3).(x+6)
U=(x^2-2x).(x^2-2x+2)
F=x^2+5y^2-2xy+4y+3
T=4x^2-4xy+2y^2+2021