20 баллов (x²+3x)²+4(x+1.5)²-6 = 0. Created by edcrfv33. matematika-ru

20 баллов (x²+3x)²+4(x+1.5)²-6 = 0...

August 2022 1 4 Report

20 баллов
(x²+3x)²+4(x+1.5)²-6 = 0

Answers & Comments

армения20171 (x²+3x)²+4(x+1,5)²-6=0

(x²+3x)²+4(x²+3x+2,25)-6=0
x²+3x=t
t²+4(t+2,25)-6=0
t²+4t+9-6=0
t²+4t+3=0
D=16-12=4=2²
t=(-4±2)/2
t1=-3;t2=-1
1)x²+3x+3=0
D=9-12=-3<0
x€∅

2)x²+3x+1=0
D=9-4=5
x=(-3±√5)/2

1 votes Thanks 1

tex]...

Answer

edcrfv33 August 2022 | 0 Ответы

tex]...

Answer

edcrfv33 August 2022 | 0 Ответы

kakoj kineticheskoj energiej obladaet telo massoj 1 kg dvizhusheesya pod dejstviem1501fb202854c405bc1482746ac4e2c1 52084

Answer

edcrfv33 August 2022 | 0 Ответы

skolko g 16 nogo rastvora solyanoj kisloty potrebuetsya dlya polnoj nejtralizacii

Answer

edcrfv33 August 2022 | 0 Ответы

c^2)*(a^2+b^2+c^2)=9...

Answer

Answers & Comments

tex]...

tex]...

kakoj kineticheskoj energiej obladaet telo massoj 1 kg dvizhusheesya pod dejstviem1501fb202854c405bc1482746ac4e2c1 52084

m3a726e579c45eda640ec7e5c552665d61 76409

a+b-c...

c^2)*(a^2+b^2+c^2)=9...

tex]...

s2 za kakoe vremya on prohodit pervye 100 m puti

skolko g 16 nogo rastvora solyanoj kisloty potrebuetsya dlya polnoj nejtralizacii

c^2)*(a^2+b^2+c^2)=9...

рекомендуемые вопросы

Helpful Links

Helpful Social