81 DIVIDED BY 400
By substitute u=x+x‐1, solve, x⁴+4x³+5x²+4x+1=0
31016x+67167y=68
15417x-6248y=264
0/0
78-87=
Opgave 3
Udregn opgaverne
−𝑎 · 𝑏 =
𝑏 · (−𝑐) =
−𝑎 · (−𝑏) =
𝑐 · 𝑓 =
400 DIVIDED BY 81
m:7=6:21
0*0
1*5