Question

срочно!!!!! ..........​

Answer 1

Ответ:

1. x+3=(x+1)² 2.∜х²-5х=∜2х²-4х-6

x+3=x²+2x+1 х²-5х=2х²-4х-6

x²+x-2=0 х²-5х-2х²+4х+6=0

D=1+8=9 х²+х-6=0

x1=-1+3/2=1 D=1+24=25

x2=-1-3/2=-2 x1=-1+5/2=2 ø x2=-1-5/2=-3

3.x=πk kϵZ 4.x⁴-x²-6=x⁴+4x-11

5.x²+x-12=0 x²+4x-5=0

D=1+48=49 D=16+20=36

x1=-1+7/2=3 x1=-4+6/2=1 ø x2=-4-6/2=-5

x2=-1-7/2=-4 ø