khanhngocta07hd khanhngocta07hd
  • 04-08-2021
  • Mathematics
contestada

Giải các bất phương trình và biểu diễn tập nghiệm trên trục số
(X-1)(x+2)>(x-1)(x-1) +3

Respuesta :

rich99coms rich99coms
  • 04-08-2021
(x-1)(x+2)=(x-1)(x-1)+3
x2-x+2x-2=x2-x-x+1+3
x2+x-2=x2-2x+4
X+2x=4+2
3x=6
3x/3=6/3
x=2
Answer Link

Otras preguntas

how do you simplified 7a(3b-2c+4)
I am doing a test to see if there is a connection between how long you run and how fast your heart beats. I will be performing an experiment where a person wil
How is the Grand Canyon like a history book
If z varies directly with the product of x and y (z=kxy), then z is said to vary jointly with x and yThe area of a triangle varies jointly with its base and hei
Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decrease
Please help. What is the value of the expression when a = 3 and b = 2?     3a^3 + 2b^3A.78   B.97C.135  D.745
1315 round nearest ten
The area of a rectangle is 24,396 square centimeters. if the width is 38 centimeters, what is the length. explain please I don't get it
describe all the numbera that when rounded to the nearest thousand are 645,000
999.999 rounded to nearest hundredth? 999.1?