Question

x^2-cx-2c^2=0 теңдеуді шешіңіз?

Answer 1

D=(-c^2)-4*1*(-2*c^2)=(-c^2)+8*c^2=7*c^2

X1=(c+(7^0.5)*c)/(2*1)=(1+7^0.5)*c/2

X2=(c-(7^0.5)*c)/(2*1)=(1-7^0.5)*c/2